Delaware-Sized Chunk of Ice Could Dislodge from #Antarctic Shelf via @EcoWatch #climate https://t.co/nHjoAThctF— Dan Zukowski (@Dan Zukowski)1472243166.0
"The Larsen C Ice shelf in Antarctica is primed to shed an area of more than 5000 square kilometers [approx. 3,100 square miles] following further substantial rift growth," wrote the Project MIDAS team, which has been studying the ice shelf.
"After a few months of steady, incremental advance since the last event, the rift grew suddenly by a further 18 kilometers [about 11 miles] during the second half of December 2016."
During the last Antarctic winter, the rift averaged about three miles per month of growth. In December, NASA released a set of images that found the crack measured 70 miles in length, 300 feet wide and one-third of a mile deep.
Stunning Photos Show Huge Crack in Antarctic Ice Shelf https://t.co/Pc1i7H0daP @WRIClimate @CarbonFixIt— EcoWatch (@EcoWatch)1481850021.0
The sudden acceleration of the split in the ice has scientists convinced that a massive calving event is imminent.
"If it doesn't go in the next few months, I'll be amazed," Professor Adrian Luckman, project leader from Swansea University, told BBC News.
By itself, the iceberg that is set to break off won't lead to a rise in sea levels, as the ice shelf already floats on the ocean. However, the Larsen ice shelf acts as a buttress against continental glaciers that could then be free to slide into the sea. BBC reports that if all the ice that Larsen C holds back were released into the ocean, global waters would rise by 10 cm, or four inches.
Globally, sea levels have risen about eight inches since 1901. Its effects can be seen in increased flooding in South Florida, coastal erosion in Louisiana, intrusion of seawater into ground aquifers and stronger storm surges such as those seen in Superstorm Sandy.
#Louisiana Faces Faster Levels of Sea-Level Rise Than Any Other Land on Earth https://t.co/zCuAWpcH7U @NRDC @RobertKennedyJr @Waterkeeper— EcoWatch (@EcoWatch)1483558863.0
Long-term satellite observations show that Antarctic glaciers are rapidly retreating. A separate rift in the East Antarctic is forcing a British research station to relocate.
Robert Swan Leads Antarctic Expedition to Show Effects of #ClimateChange http://t.co/OtH32KIJX7 @robertswan2041 http://t.co/UBG4ayYUZs— EcoWatch (@EcoWatch)1425501873.0
The Larsen C is the latest section of the huge ice shelf to break off. Larsen A collapsed in 1995. In 2002, Larsen B began to break apart. Within six weeks, a 1,235 square mile chunk of ice slipped away.
When the Larsen C ice shelf breaks off, it "will fundamentally change the landscape of the Antarctic Peninsula," said the U.K.-based Project MIDAS team.
A controversial, last-ditch plan to round up the last remaining vaquitas—a critically endangered porpoise found only in the Sea of Cortez—may get underway this spring with the aid of U.S. Navy-trained bottlenose dolphins. The vaquitas would be placed in a protected enclosure while efforts are made to get illegal fishing in the area under control.
@SeaShepherdSSCS's @MVFarleyMowat Busts Six Poaching Boats in the Sea of Cortez. https://t.co/Wwa7oqJAZK @EcoWatch— Captain Paul Watson (@Captain Paul Watson)1483037158.0
Their numbers have dropped dramatically in the last 20 years. There were 567 individuals in 1997, 245 in 2008 and just under 100 in 2014. The report puts a high probability on extinction within five years.
Vaquita refuge established in 2005 where gillnet fishing is prohibited.National Geographic
The Mexican government has been working with local fishermen to save the species. In 2005, Mexico established a refuge off San Felipe in the Gulf of California. Gillnet fishing was banned in the refuge. The government is spending $74 million to compensate fishermen and encourage them to use safer fishing methods.
For a time, it worked. Although the population continued to decline, it did so at a slower rate. Scientists hoped it would soon turn around and begin to recover.
But they didn't count on China.
The country's newly-minted millionaires stimulated a demand for dried fish bladders. Called fish maw, they are alleged to possess medicinal properties including the ability to increase fertility. The source of those fish bladders: the Mexican totoaba, a critically endangered fish found in the same waters as the vaquita.
Totoaba bladders are worth up to $5,000 per kilogram and can command as much as $100,000 on the black market in China, according to a 2016 report by the Environmental Investigation Agency. They can be found at retailers in major Chinese cities as well as online sites such as Alibaba. Poachers often take their boats out at night, and use gillnets under the cover of darkness to round up as many totoaba as they can. The vaquita are merely bycatch, caught up in the nets where they often drown or die from stress.
Fish maw wholesaler in Shantou, China (c) EIAEnvironmental Investigation Agency
Details of the plan to save the vaquita are still being worked out.
Plans may involve using dolphins from the Navy Marine Mammal Program, which has studied, trained and deployed these highly intelligent animals since the 1950s. Dolphins would be used to help locate vaquitas. They would then be coaxed into lightweight surface gillnets. It's never been done before with vaquitas, but harbor porpoises in Greenland have been captured safely in a similar manner.
Portable generators allow you to power your devices and certain appliances, even away from home or when your primary power source is taken offline. These devices are also perfect for camping or outdoor adventures. A portable solar generator can give you the power you need with a smaller ecological footprint by using solar panels. In this article, we'll outline some of the top options available in 2021.
Our Picks for the Best Portable Solar Generators
Each product featured here has been independently selected by the writer. If you make a purchase using the links included, we may earn commission.
- Best Overall - Goal Zero Yeti 1500X
- Best High-Capacity - MAXOAK Bluetti EB150
- Best Expandable Power - EcoFlow RIVER Pro
- Best Compact Design - Renogy PHOENIX 300
- Best Portability - Suaoki S370
- Best for Camping - Jackery Explorer 300
- Best Price - Westinghouse iGen200s
How We Reviewed Portable Solar Generators
A good portable generator will offer you backup power in a convenient and reliable way. We have reviewed some of the top models on the market today, and arrived at a few that we think stand out from the rest.
To rank the best solar generators, we considered the following criteria:
- Size and weight. Smaller, more lightweight units offer much greater ease of use. We sought portable solar generators that aren't too challenging to lug around your home, or take with you when you go camping.
- Battery storage capacity. While your generator absorbs light through a solar panel, that energy is ultimately stored in a battery. The battery storage capacity, measured in watt-hours (Wh) determines how long you can use the generator before it requires a recharge.
- Inverter rating. Basically, inverter rating refers to the total number of watts that the solar generator can extract at any given time. Inverter rating, along with battery capacity, determine the wattage and power output of your generator.
- Expandability. Some generators come with a predetermined number of solar panels, while some allow you to add more solar panels as needed. This is an important feature to consider when looking for generators.
- Price point. Naturally, when looking for a new solar generator, staying on budget is always going to be a factor. We chose generators that are competitively priced.
The Best Portable Solar Generators
With these ranking factors in mind, here are our picks for the best portable solar generators available in 2021.
Goal Zero's line of Yeti portable power stations are well-suited for a wide range of off-grid uses, including emergency power, camping trips, and more. The Goal Zero Yeti 1500X is their most-popular large power station with enough power for everything from cell phones and laptops to medical devices like CPAP machines and even full-size refrigerators.
Why buy: The Goal Zero Yeti 1500X includes a 2000W AC (3500W Surge) inverter giving you the equivalent of a wall outlet power supply on-the-go. It also has seven different port options and a top-of-the-line app that makes it easy to monitor and manage your solar powered generator, no matter where you are.
For a high-capacity power station, check out the Bluetti EB150 from MAXOAK. Though it's not the most affordable option, you'll get a lot of features and utility for your investment. It includes a lithium ion battery capacity of 1500 Wh. When connected to three 150W solar panels, it can be recharged in about 3.5 to 4 hours.
Why buy: For a portable solar generator designed to power most household appliances under 1000W, the high-powered Bluetti EB150 is a great choice. MAXOAK also backs their product with a 24-month replacement or maintenance warranty.
EcoFlow boasts an impressive catalog of portable power stations, as well as reliable solar panels. We like the EcoFlow RIVER Pro power station because its technology enables incredibly fast recharging; you can connect it to two 110W solar panels to recharge in as little as 4.5 hours.
Why buy: The EcoFlow RIVER Pro includes a wide range of best-in-class technologies. Offering 720 Wh of power with three pure sine wave AC outlets, and weighing only 15.9 pounds, these units are well-suited for camping and hiking, as well as use around the house. You can also add an additional EcoFlow battery pack to upgrade the power of your generator as needed.
Renogy produces several different power stations and chargers, but we especially like the PHOENIX 300, a solar power solution that's extremely lightweight and compact. It comes with an easy-grip handle and only weighs 6.4 pounds, making it one of the most portable solar generators around while still offering up to 200W of AC power for off the grid activities.
Why buy: The PHOENIX 300 can provide 337 watt-hours for up to 8 hours of AC continuous power without the noise or fumes associated with gas generators. It includes a number of the most common charging ports like two AC adaptors, a USB-C, USB-A, USB, and a D-Tap port for photography equipment.
Suaoki is a company that's known for simple, functional, reliable technology. Their S370 portable solar generator isn't necessarily flashy, but it's an extremely lightweight option, perfect for camping, hiking, and other outdoor adventures. It includes 14 outlet ports and a pure sine wave inverter, making it a versatile power option.
Why buy: This is one of our top picks for camping and hiking, though it may also serve your needs as a backup power station for small appliances and electronics. A lithium-ion battery gives this generator an incredible capacity battery life, particularly in relation to its compact size.
Jackery's portable power stations are ideally suited for camping and hiking. The Explorer 300 offers great portability and fast rechargeable power at an affordable price. It includes two AC outputs, a USB-C, USB-A, USB ports, and a 12-volt car port.
Why buy: The Explorer 300 generator is a good option for those who are new to solar power, thanks to its low price and easy-to-use controls. Jackery offers a number of portable solar panel options, and the power station's MPPT technology means that it can be recharged from the sun in just 5.5 hours.
There are plenty of reasons to consider the Westinghouse iGen200s portable generator. This is one of the more affordable options on the market today, which makes it a good entry-level solar power solution. The unit offers four charging options. You can recharge with solar panels, with the power from your vehicle, with a household power outlet, or with a separate generator.
Why buy: For a simple and inexpensive solar power generator, Westinghouse makes an outstanding product. You can charge up to nine devices at a time; and, depending on how you use it, you can potentially get more than 40 hours out of your generator.
What Types of Batteries Do Solar Generators Use?
It's important to note that solar power generators may employ different kinds of batteries. The most common option is the lithium-ion battery. These tend to be more expensive than lead-acid batteries, at least on the front end. With that said, a lithium-ion battery will prove more durable, which usually makes it the smarter investment in the long run. Solar generators include charge controllers, which regulate the volts of energy coming from the solar panels to the battery to make sure the battery isn't overcharged and damaged.
The energy stored in the battery is converted from DC power into AC power using an inverter or adapter.
What Can You Power With a Portable Solar Generator?
There are different types of solar generators. A backup generator is primarily used to power your home, should your electricity go out. In this article, we focused on portable generators, which are mostly used for hiking and camping. With that said, a portable generator can also be really useful during power outages, potentially keeping your lights, electronic devices, and small devices or appliances on for several hours. Depending on the watts of power your solar system generator kit can support, you can use it to power things like phones, tablets, laptops, TVs, coffee makers, a mini-fridge, certain medical devices, and most anything you would plug into a car charger.
Some of the generators we've listed here can be charged by solar energy or via other sources, including vehicles and power outlets. These different charging solutions make a generator more versatile, though of course, solar energy is what you'll want to use if staying away from fossil fuels is your goal.
What are the Benefits of a Portable Solar Generator?
There are a number of reasons why you might consider a portable solar generator:
- These units are ideally suited for camping and hiking. The ones on our list range in weight from under 10 pounds to over 50, but they are all fairly easy to cart around as needed, or to keep in your camper or RV.
- Though they are not primarily intended to be emergency backup generators, they can certainly be used in that capacity. In particular, they can provide emergency power to important medical devices as well as phones and computers.
- Unlike gas generators, portable solar generators offer power without making a lot of noise or creating a lot of fumes. This makes them much more appealing for campsites.
- Portable solar generators are better for the environment, since they don't rely on gas or diesel fuel to run.
- Using a solar generator is ultimately more cost-effective as you will never need to purchase fuel to recharge it.
Solar Power Can Take You Further
Solar power is one of the best options for dependable, renewable energy. Not only can it help power your house, but you can use these portable generators to carry that power with you, wherever you may go.
There are clearly lots of options on the market today. We hope our guide is helpful to you as you assess our own backup power needs, and as you determine which portable solar generator will give you the greatest value. Note that you can find many of these solar power options through third-party retailers like Amazon. Do your due diligence as you seek the perfect, portable solar solution for you and your family.
Josh Hurst is a journalist, critic, and essayist. He lives in Knoxville, TN, with his wife and three sons. He covers natural health, nutrition, supplements, and clean energy. His writing has appeared in Health, Shape, and Remedy Review.
Tuticorin power plant in India will convert carbon emissions to soda ash.Roger Harrabin / The Guardian
The process was developed by London-based Carbon Clean Solutions Limited (CCSL). A pilot project, completed in May 2016, demonstrated the advantages of the process. Soda ash, also known as sodium carbonate (Na2CO3), is used in glass manufacturing, fiberglass insulation, sweeteners and household products. Baking soda, or sodium bicarbonate (NaHCO3), is one of those products.
"This project is a game-changer," said Aniruddha Sharma, chief executive officer at Carbon Clean Solutions. "This is a project that doesn't rely on government funding or subsidies—it just makes great business sense."
CCSL said that it can capture CO2 at $30 per metric ton, far lower than the $60 to $90 per ton typical in the global power sector. It said that the project will capture more than 60,000 metric tons (about 66,000 U.S. tons) of carbon each year.
Carbon Capture: 'Only Realistic and Affordable Way to Dramatically Reduce Emissions' https://t.co/pikzCUDHqR @UKGBC @cleantechgroup— EcoWatch (@EcoWatch)1453590621.0
Carbon Clean Solutions is not the first company to attempt to commercialize a process to convert CO2 emissions into commercially marketable products.
In 2012, a U.S. startup named Skyonic raised $9 million from investors to build a plant to convert carbon emissions from a cement plant in San Antonio, Texas. The investors included ConocoPhilips, BP and PVS Chemicals. The facility opened in October 2014 at the Capitol Aggregates plant and became operational in January 2016. Outputs include baking soda, bleach and hydrochloric acid.
Skyonic has said that, at full capacity, the plant will be able to capture 75,000 tons annually of CO2. The company claims that its process uses 30 percent less energy than more common carbon capture technologies. The plant was financed with the aid of a $28 million award under the American Recovery and Reinvestment Act.
California-based Blue Planet produces concrete and other building materials from sequestered CO2. The company says its concrete can be carbon neutral or carbon negative. Climate activist and actor Leonardo DiCaprio is a member of the firms' government affairs advisory board.
Leonardo DiCaprio Joins Carbon Capture Technology Company to 'Bring About a More Sustainable Future for Our Planet' https://t.co/07V5n8b0BP— EcoWatch (@EcoWatch)1455318126.0
In Germany, ThyssenKrup Steel Europe began a pilot project in December 2015 to produce ammonium bicarbonate (NH4HCO3) from carbon emissions. This compound is used in the manufacturing of ceramics and in the plastic and rubber industries among others. Initial results, the company said, have been promising.
In a twist on the idea of creating baking soda from carbon emissions, Lawrence Livermore National Laboratory in California has created microcapsules and an absorbent sponge that use baking soda itself to capture carbon. They believe this process could be about 40 percent cheaper than current carbon capture methods.
TACFL has been producing soda ash at the Tuticorin plant since 1981. The chemical is generally made from trona ore. Major deposits of the ore are found in California, Wyoming and Utah in the U.S. as well as Botswana, Egypt, Turkey, China and parts of Africa.
Carbon Clean Solutions' patented technology scrubs CO2 emissions and feeds them to a chemicals plant where they are used to manufacture common products such as baking soda.Source: Carbon Clean Solutions Limited
In the Chennai coal plant, flue gases are diverted to an absorber that removes CO2 using technology patented by CCSL. The CO2 is then fed to the TACFL chemical plant.
Ramachadran Gopalan, owner of the Tuticorin plant, told BBC Radio, "I am a businessman. I never thought about saving the planet. I needed a reliable stream of CO2, and this was the best way of getting it."
Gopalan said the plant now produces zero carbon emissions. He is looking to install a second coal boiler to produce additional CO2 that can be used to synthesize fertilizer.
President Obama used his authority under the Antiquities Act to protect two large areas in the western U.S. The new Bears Ears National Monument in Utah preserves 1.35 million acres containing 100,000 significant Native American sites, while the Gold Butte National Monument in Nevada sets aside 300,000 acres, also home to Indigenous archeological sites.
Protection for both of these sites has been supported by Native American tribes. Looting and desecration of artifacts has been common in these areas.
"The rock art, ancient dwellings and ceremonial sites concealed within these breathtaking landscapes help tell the story of people who have stewarded these lands for hundreds of generations," said U.S. Secretary of the Interior Sally Jewell. "Today's action builds on an extraordinary effort from tribes, local communities and members of Congress to ensure that these treasures are protected for generations to come, so that tribes may continue to use and care for these lands, and all may have an opportunity to enjoy their beauty and learn from their rich cultural history."
A coalition of the Hopi Nation, Navajo Nation, Ute Mountain Ute Tribe, Ute Indian Tribe of the Uintah Ouray and Zuni Tribe will serve on the Bears Ears Commission, making the tribes co-managers of the national monument along with the federal government.
"For the first time in history, a president has used the Antiquities Act to honor the request of Tribal Nations to protect our sacred sites. In doing so, he has given the opportunity for all Americans to come together and heal," said David Filfred, Navajo Nation council delegate.
"This is a historic moment," the Southern Utah Wilderness Alliance, an independent citizens organization that has worked to help establish Bears Ears, said in a statement. "The new national monument—the result of a proposal from an unprecedented coalition of Tribal Nations—will safeguard more than 100,000 cultural sites and protect an incredible natural landscape for generations to come."
Outdoors retailer Patagonia, which has been active in support of these national monument designations as well as others, also applauded the announcement.
"In protecting Bears Ears, the president recognizes the leadership and historic vision of the Bears Ears Inter-Tribal Coalition representing five tribes, and the strong grassroots support from climbers and conservation groups," Patagonia CEO Rose Marcario said. "We are witnessing the power of community activism, and we thank President Obama for listening and taking action."
Speaking about the new Gold Butte National Monument, Ron Hunter, Patagonia environmental activism manager in Reno, Nevada, added, "At Patagonia, we recognize the fundamental connection between protecting our great outdoors and our business and that is why Patagonia is thrilled that President Obama has designated Gold Butte as a national monument. Thank you President Obama, Senator Reid, and Representative Titus for all you have done to protect Gold Butte."
But, these designations are fiercely opposed by some Republican members of Congress. Rep. Rob Bishop (R-UT), who has told supporters of the Antiquities Act to "just die," is one of several Utah legislators to oppose the national monument designation for Bears Ears.
Rep. Bishop and Rep. Jeff Chaffetz (R-UT) co-authored the Public Lands Initiative, which sought to take 100,000 acres of tribal land and hand them over to oil and mining companies. Chaffetz called the announcement a "midnight move" by the outgoing Obama administration.
In a joint statement issued by the U.S. Department of the Interior and the U.S. Department of Agriculture, the work of Bishop and Chaffetz was acknowledged. "These designations build on the framework developed by the Congressmen to both protect and allow for continued use and enjoyment of the area by residents and visitors," it stated.
Bears Ears, in southeastern Utah, borders Canyonlands National Park and the Glen Canyon National Recreation Area. All current uses of the land that do not harm resources protected by the monument will continue to be allowed. These include off-highway vehicle recreation, hunting and fishing, and authorized grazing.
Gold Butte protects portions of the Mojave Desert in southwest Nevada along with Joshua tree forests and large stands of ponderosa pine. Retiring Sen. Harry Reid (D-NV) had campaigned for the national monument designation.
"After working for decades to protect Gold Butte's breathtaking landscapes and cultural treasures, I was overjoyed to hear the news today from President Obama," Sen. Reid said. "The splendor of Gold Butte will now be protected for all of us. It will be enjoyed for generations to come and I appreciate the persistence of the many Nevadans who fought for its protection despite the obstacles."
President Obama has invoked the 1906 Antiquities Act 29 times, protecting more than 550 million acres, more than any other president.
"We applaud President Obama for taking action to permanently protect the culture and history of Gold Butte and Bears Ears," Michael Brune, executive director of the Sierra Club, said. "Protected open spaces like these are vital for healthy air, water, and climate, but they also provide powerful opportunities for healing—something vitally important as people come together during this tense moment in history. These designations, a response to strong tribal advocacy and years of work by local people, is a welcome reminder of the power of positive action and a chance to continue building the inclusive future we want to see in our public lands."
It remains to be seen if efforts to repeal any of these actions will be successful. However, Trump's pick to run the Department of the Interior, Ryan Zinke (R-MT) is troubling, according to the Union of Concerned Scientists.
Best piece yet on Trump's Interior pick, Zinke @EcoWatch https://t.co/Pj4JYW44g1— Robert F. Kennedy Jr (@Robert F. Kennedy Jr)1481919367.0
In his first term as a Congressman, Zinke voted to weaken the Antiquities Act by limiting the president's ability to designate new national monuments. In 2015 the League of Conservation Voters gave Zinke a bottom-of-the-barrel 3 percent score for his environmental voting record and in 2016 the National Parks Action Fund gave Zinke an F for his voting record on key bills affecting national parks.
U.S. and Canada together discard 22 million pounds of plastic into the waters of the Great Lakes each year, according to a new Rochester Institute of Technology (RIT) study. Most of it washes up along the shores, accounting for 80 percent of the litter found there.
Researchers said that Chicago, Toronto, Cleveland and Detroit are the worst contributors to the plastic pollution. Half of the plastic dumped into the Great Lakes—11 million pounds—goes into Lake Michigan. Lake Erie comes in at number two, receiving 5.5 million pounds. Lake Ontario gets 3 million pounds of plastic waste a year, with Lake Huron and Lake Superior receiving smaller amounts.
"This study is the first picture of the true scale of plastic pollution in the Great Lakes," said Matthew Hoffman, assistant professor in RIT's School of Mathematical Sciences and lead author of the study.
Plastic pollution in Lake Michigan is approximately the equivalent of 100 Olympic-sized pools full of plastic bottles dumped into the lake every year.
"Every piece of plastic entering our watersheds is an example of a serious design flaw: we are manufacturing products that have no recovery plan or value after they leave consumer's hands," said Anna Cummins, co-founder and global strategy director of 5 Gyres Institute. "Just as we demand that people dispose of their trash properly, we must also demand that companies take responsibility for the end life of their products."
Plastic debris in the Great Lakes moves differently than in the ocean. Instead of the free-floating garbage patches that are driven by ocean currents, like the Great Pacific Garbage Patch, plastic in the Great Lakes is carried by winds and currents toward shore.
"Most of the particles from Chicago and Milwaukee end up accumulating on the eastern shores of Lake Michigan, while the particles from Detroit and Cleveland end up along the southern coast of the eastern basin of Lake Erie," Hoffman explained. "Particles released from Toronto appear to accumulate on the southern coast of Lake Ontario, including around Rochester and Sodus Bay."
22 #Facts about plastic #pollution - and 10 things you can do about it. Via @EcoWatch https://t.co/kzNx9Q1BZC https://t.co/06LRqPLnol— What's Your Impact? (@What's Your Impact?)1475683140.0
"Similar to what we find worldwide, much of the plastic is microplastic, which are fragments smaller than a grain of rice and practically impossible to clean up, making prevention the only real option," said Marcus Eriksen, research director at 5 Gyres Institute.
Estimates of surface microplastics entering the lakes each year show 9,722 pounds in Lake Erie, 3,174 pounds in Lake Huron and less than 50 pounds in Lake Superior.
Microplastics Are Killing Baby Fish, New Study Finds https://t.co/ytQzRSNPxZ @5gyres @EnvCalifornia— EcoWatch (@EcoWatch)1465085411.0
"Like our successful microbead campaign, the fact of so much trash entering the Great Lakes is an opportunity to identify the most common brands and work with those companies to improve recovery or choose something less harmful than plastic for their products and packaging," said Eriksen.
The RIT study, which will be published in an upcoming issue of Marine Pollution Bulletin, used computer simulations and mathematical modeling to provide a more complete and accurate picture of plastic pollution in the Great Lakes.
Researchers said that the study could help inform future cleanup and prevention efforts.
A female mountain lion with three kittens was struck and killed by a car while crossing the six-lane 118 Freeway near Chatsworth, California on Dec. 3. Her three kittens are not expected to survive, the National Park Service announced Thursday.
The remains of the mountain lion, known as P-39, have not been found, but her radio collar was located in the center divider of the freeway. It likely came off as a result of the impact with the vehicle. Her kittens haven't been located yet.
P-39 is the thirteenth mountain lion killed since 2002 on Los Angeles county roads.
About 15 of the big cats are known to inhabit the Santa Monica Mountains, which are crisscrossed by freeways and other roads in the highly populated area. The mountain range extends east-west from the Pacific Ocean to the Hollywood Hills in the heart of Los Angeles.
"P-39's death is a jolting call to action for local and state officials to urgently build the corridors necessary to ensure the safe passage that these majestic cats are entitled to," said Jean Su of the Center for Biological Diversity.
"People forget that the Santa Monica Mountains are native mountain lion territory," Su added. "It's our houses and freeways that have directly infringed upon their homes and natural corridors."
Prompted by the repeated deaths of these animals while crossing busy roads, wildlife advocates have suggested bridges and tunnels that could act as passageways.The California Department of Transportation (Caltrans) has proposed building a 200-foot long wildlife overpass above the 110 freeway in Agoura Hills.
Separately, the Los Angeles City Council is looking at enacting a wildlife corridor that would require new development to provide access for animals to transit the area. They say it will help to reduce human conflicts.
World's Largest Wildlife Corridor to Be Built in California http://t.co/cyvCHUlrSx @earthislandjrnl @ran http://t.co/Po57mXOyak— EcoWatch (@EcoWatch)1443370849.0
"The recent headlines featuring mountain lions of the Greater Los Angeles area, such as the death of P-39 on the 118 freeway, highlights the tremendous pressure facing these big cats due to lack of connectivity, urbanization and habitat fragmentation," said documentarian Tony Lee. He is the producer and director of The Cat That Changed America, which tells the captivating story of P-22, perhaps the most famous mountain lion of all time.
P-22, who lives in the shadow of the Hollywood sign, wasn't born there. In search of that territory, which he could call his own, the big, tawny-brown cat had to cross two major freeways and walk through dense urban areas.
However, P-39 wasn't so lucky. The five-year old had given birth to her second litter earlier this year and had mostly stayed in an undeveloped area north of the 118 freeway. Just days before she was killed, she crossed the freeway for the first time.
Today, there are some 4,000 to 6,000 mountain lions roaming California. They inhabit high mountain forests, coastal chaparral and scrubland. They prefer to avoid humans, but conflicts can occur. There have been 15 verified attacks on people since 1986 in the state, resulting in three fatalities.
Source: Mountain Lion Foundation.
Mountain lions are far more likely to be the victims of human actions. At one time, there was a bounty on mountain lions in California. From 1907 to 1963, 12,462 were killed and turned in for the bounty.
But the killing hasn't stopped. Since 1991, 2,542 cougars have been killed under depredation permits and 947 from other causes including vehicle collisions.
One that just barely escaped a death sentence this year was P-45, suspected of killing 10 alpacas on a ranch north of Malibu. The ranch owner was granted a permit to kill the predator, but has since agreed to work with the California Department of Fish and Wildlife and the National Park Service to either relocate or place the mountain lion in captivity.
Rat poison, which gets into the food chain when homeowners, exterminators and farmers use powerful rodenticides, also threatens the state's mountain lions. More than three-quarters of the cats in California carry the poison in their systems.
In September 2015, a hiker found P-34 dead in a state park in Southern California. P-34, a female cougar, was the "third case of mortality directly from rodenticide poisoning," according to the National Park Service.
But increasingly, people are having to get along with wild animals in urban areas, including mountain lions. And in California, attitudes toward the big cats are changing, thanks in part to P-22.
A healthy-looking P-22 in Griffith Park, Los Angeles.National Park Service
The cat's home, since at least 2012, has been Griffith Park, an urban park that sees 10 million visitors a year. However, few have ever seen the elusive cougar other than in photos.
Griffith Park encompasses just eight square miles. A male mountain needs as much as a 200-square-mile territory.
Inbreeding among cougars inhabiting the Santa Monica Mountains is threatening their long-term survival. A study released in August gave the big cats a near-zero chance of surviving the next 50 years unless more lions become part of the gene pool.
"P22 lives inside Griffith Park, but he is isolated by freeways on every side and has little chance of ever finding a mate. His plight is changing the way Americans think about wildlife management," said Lee. "We cannot have mountain lions dying on our freeways when we have the technology and capability to prevent future mortalities. Mountain lions are territorial animals and need large home ranges and open spaces to survive."
Adult mule deer buck.Yellowstone National Park/NPS
The state is currently home to just more than 400,000 mule deer. The target population set by Colorado Parks & Wildlife (CPW) is 525,000 to 575,000.
In the 1800s, both white-tailed and mule deer were hunted with abandon until they became so scarce that most people just stopped hunting them. Federal and state conservation legislation beginning around 1900 allowed deer to recover.
Beginning in the 1970s and 1980s, however, as energy development grew in Western Colorado, mule deer populations began to decline. The White River herd, which once numbered 100,000 animals, is now down to 32,000. Populations in the state's central and northern mountains, and those on the eastern Plains, are stable.
Anyone who has visited a national park or hiked the forests and shrub lands of the West has likely encountered mule deer. Mule deer range west of the Missouri River and are smaller than white-tailed deer, which are more common in the East.
They can be seen in most of Colorado, in the Yosemite Valley, along the South Rim of the Grand Canyon and in the foothills of Los Angeles. Mule deer are often unafraid of humans in areas such as these where hunting is prohibited and interactions are common.
Mountain lions—also known as cougars—take a particular liking to mule deer. Wolves, coyotes and bears also prey on the species. But natural predation is not seen as the leading cause of mule deer declines in Colorado.
A mountain lion on the hunt.Dan Zukowski
"We believe that habitat degradation from energy, and residential development, which has been confirmed by CPW biologists for years, should be the primary focus of scientifically-based wildlife management," said Brian Kurzel, regional executive director for the NWF.
Colorado's plan calls for the killing of up to 15 mountain lions and 25 black bears each year for the next three years using cage traps, culvert traps, foot snares and hunting dogs. The $4.5 million wildlife management plan would then be followed by a six-year study to see how the deer population responds.
There is concern that the CPW's decision is driven by money and a desire to favor hunting, which generates $693 million in annual economic benefits in northwest Colorado alone. Last year, 34,000 mule deer were taken legally by hunters. The CPW gets 90 percent of its revenue from hunting and fishing licenses.
But not even hunters are buying into the plan.
Brett Ochs, a Colorado resident who describes himself as "someone who has been hunting in Colorado for more than three decades," wrote in the Boulder Daily Camera, "Killing predators to arbitrarily see if it will boost mule deer populations is unsustainable and not sound wildlife management." He argued that CPW should use revenues from hunting fees to improve habitat and migration corridors.
"Other states have tried to boost deer populations by removing predators from the landscape, but time and time again these studies have failed to increase deer populations," said Andrea Santarsiere, senior attorney at the Center for Biological Diversity.
Mountain lions are a game animal in Colorado. Even though CPW says it has no idea of the population of the species in the state, it allowed the killing of 467 big cats during the 2014-2015 hunting season. Many argue that killing a few more is not the answer.
"Deer in Colorado suffer from lack of habitat and habitat degradation, largely due to expansive oil and gas drilling and invasive plant species. Without adequate nutrition, deer will not thrive no matter how many predators CPW removes," Santarsiere added.
Mule deer herds in northwestern Colorado were once so prolific that the area was known as the "mule deer factory." But that's the area where drilling has dramatically increased in recent years. The NWF report reveals that 8,965 new wells were dug between 2005 and 2012.
Crude oil production in Colorado grew 64 percent from 2007 to 2011, while natural gas production rose 27 percent during the same period. In 2012, Colorado was the sixth leading producer of natural gas and the ninth leading producer of oil in the U.S. More than 90 percent of new wells use hydraulic fracturing, or fracking.
6 Colorado Teenagers File Appeal in #Fracking & #Climate Lawsuit https://t.co/4ChiK1BVWk @MarkRuffalo @joshfoxfilm https://t.co/HQDYx7l027— EcoWatch (@EcoWatch)1459861608.0
In a comprehensive NWF report on mule deer in Colorado, the organization refers to a similar issue in a neighboring state.
"Research has shown that two mule deer herds in western Wyoming, parts of which have been heavily drilled the last decade or so, have shrunk by at least 30 percent," the report says. "Researchers don't pin all the decline on energy development, but note that deer avoid well sites."
Last month, the Obama Administration canceled 25 oil and gas leases in western Colorado and added restrictions on others. Even though all were inactive leases, the executive director of the West Slope Colorado Oil and Gas Association, David Ludlam, considered the cancellation of the leases to be a "last-ditch shot across the bow" from President Obama.
Colorado State University wildlife biologists reminded CPW commissioners in a letter dated Dec. 10 that road construction and oil and gas development had damaged large areas of deer habitat, and argued against the plan to cull cougars and bears.
"The scientific consensus is clear and compelling—predator control is a costly and ineffective management tool to increase mule deer populations," they wrote.
For more information on the history of mule deer, watch here:
NASA has just released new aerial photographs that show, close-up, an immense, 70-mile long rift in the Larsen C ice shelf in Antarctica. The breach is 300 feet wide and one-third of a mile deep. As it grows, an iceberg the size of Delaware will break off.
NASA's Operation Icebridge prepares to fly another mission over Antarctica. Credit: NASA.
A 70-mile long rift in the Larsen C ice shelf was revealed in this image made on Nov. 10, 2016. Credit: NASA/John Sonntag.
When the Larsen C breaks off, it will create an iceberg the size of Delaware. Credit: NASA.
Operation Icebridge, in its eighth year of conducting airborne survey of polar ice, flew two missions in November around the 88th parallel. The highly sophisticated aircraft is equipped with radars, lasers, digital imaging and infrared sensors.
The Larsen ice shelf, in the East Antarctic, is of interest because two previous sections have broken off and disappeared into the sea. Larsen A collapsed in 1995. In 2002, Larsen B began to break apart. Within six weeks, a 1,235 square mile chunk of ice slipped away, which scientists attributed to warmer air temperatures. Prior to that, the Larsen B ice shelf had been stable for 12,000 years.
Delaware-Sized Chunk of Ice Could Dislodge from #Antarctic Shelf https://t.co/x7uSaijzFW @MichaelEMann @mzjacobson @ClimateReality @algore— EcoWatch (@EcoWatch)1472146081.0
Larsen C began thinning around the time that the other sections broke off, losing 13 feet between 1998 and 2012. But deterioration of the ice shelf has dramatically accelerated.
When the dark of the Southern Hemisphere winter lifted in August, scientists were shocked to see that the rift in the ice had grown nearly 14 miles.
"The growth of this rift likely indicates that the portion of the ice shelf downstream of the rift is no longer holding back any grounded ice," said Joe MacGregor, IceBridge deputy project scientist and glaciologist at NASA Goddard Space Flight Center.
Ice shelves ride on water and are fed by glaciers and continental ice streams. Cracks and calving are normal, and the loss of a portion of an ice shelf will not contribute to sea level rise as it is already afloat on the ocean. However, an ice shelf such as Larsen C holds back land ice, acting as a buttress. When a shelf disintegrates, the glaciers behind it can flow out to sea, which will directly increase sea level.
Long-term satellite observations show that Antarctic glaciers are rapidly retreating. In West Antarctica, they are losing 23 feet of elevation per year. As they slip away, they add up to 150 billion tons of water to the ocean, raising seas by about a tenth of an inch annually.
One of those glaciers, the Pine Island Glacier, calved off a 225 square mile iceberg in 2015. Ohio State University researchers found that the rift began at the base of the glacier in 2013 and worked its way upward.
"It's generally accepted that it's no longer a question of whether the West Antarctic Ice Sheet will melt, it's a question of when," said study leader Ian Howat, associate professor of Earth Sciences at Ohio State.
Britain's Halley VI research station has to be moved to avoid being lost at sea. British Antarctic Survey
A separate rift in the East Antarctic is forcing a British research station to relocate. It's on the wrong side of the crack and could be stranded out at sea.
Antarctica holds more than half of the planet's fresh water in its snow, glaciers and ice formations. But conditions around the continent are worsening.
The NASA mission also flew over Antarctic sea ice. It found coverage to be sparse in the Bellingshausen Sea, on the west side of the Antarctic Peninsula.
Source: National Snow and Ice Data Center
In November, Antarctic air temperatures were 3.6 - 7.2 degrees Fahrenheit warmer than normal. Antarctic sea ice set a new record low, as did the Arctic. Antarctic sea ice was a staggering 699,000 square miles below the 1981 to 2010 average.
"Antarctic sea ice really went down the rabbit hole this time," said Ted Scambos, the lead scientist at the National Snow and Ice Data Center.
The West Antarctic Ice Sheet could collapse entirely within the next 100 years.
"The collapse would lead to a sea-level rise of nearly 10 feet, which would engulf major U.S. cities such as New York and Miami and displace 150 million people living on coasts worldwide," stated the Ohio State researchers.
NASA's Operation Icebridge flights were based this year at Punta Arenas, Chile. Next year, the agency plans to fly from McMurdo Station in Antarctica in order to survey new areas. But, future missions may be in doubt. President-elect Donald Trump has suggested eliminating all climate research conducted by NASA, leaving Antarctica and the rest of the planet in the "dark ages."
One megawatt of solar power was installed every 32 minutes in the U.S. from July to September, for a record total of 4,143 megawatts of new, clean energy, according to the Solar Energy Industries Association (SEIA) and GTM Research's U.S. Solar Market Insight report.
That brings total installed solar capacity in the U.S. to 35.8 gigawatts, enough to power 6.5 million homes. Solar power may double from 2015 to 2016. SEIA said.
Rapid growth in solar power installations continued in 2016.Source: Solar Energy Industries Association
"The United States solar market just shattered all previous quarterly solar photovoltaic (PV) installation records," stated SEIA.
Through the end of September, solar accounted for 39 percent of all new electric generating capacity brought on-line in the U.S. Both utility-scale installations and residential installations grew strongly. Electric power utilities accounted for 77 percent of additions to the grid, while both corporate and residential customers added capacity as well.
"The solar market now enjoys an economically-winning hand that pays off both financially and environmentally, and American taxpayers have noticed," said Tom Kimbis, SEIA's interim president.
Community solar represents another growing trend. In these programs, both residential and business customers share a large, central installation. These work well for renters and condo owners, homeowners who can't install rooftop solar panels or owners of historic buildings that are not permitted to alter the structure.
Currently, 25 states have active community solar projects, serving both cities and smaller communities. In Boulder, Colorado, the sold-out Boulder Cowdery Meadows Solar Array generates 496,455 kilowatts. A 52-kilowatt installation is up and running in Wayne, Maine, serving nine Central Maine Power customers. Other projects can be found in Orlando, Seattle and Springfield, Missouri.
Community solar is expected to add 200 megawatts this year, a fourfold increase over 2015 according to SEIA. Much of the demand is being driven by the nosedive in solar system costs. Overall pricing fell by 6.9 percent in the 3rd quarter, with costs now below $3 per watt.
"The phenomenal boom in U.S. solar is being driven by dramatically lowering solar costs, to the point where solar is in many cases now the most affordable power and smartest investment for homeowners, businesses, and cities," said Glen Brand, Maine chapter director for the Sierra Club. "And this is despite the enormous subsidies for dirty fossil fuels and the coordinated attacks on state solar policy by monopoly, private utilities."
Municipalities, which are often large users of electricity for government buildings, streetlights and other needs are adding cost-effective solar as well. The village of Minster, Ohio, was the first. A 3-megawatt solar array is saving the town $1 million per month.
Peterborough, New Hampshire, completed its 1-megawatt installation in 2015 and Portland, Maine, plans to build a 660-kilowatt solar project on an a closed landfill that will power city hall and the 1,900-seat Merrill Auditorium.
Looking ahead, SEIA forecasts a decline in new installations in 2017 and 2018. Some near-term pullbacks are due to delays in utility connection projects, which currently see an 8-gigawatt backlog. SEIA expects growth to resume in 2019.
The Department of Energy has refused to respond to the Trump transition team's chilling 74-question document seeking the names of anyone who has worked on climate change in the department. Climate scientists are also acting feverishly to preserve data after a senior Trump campaign adviser suggested eliminating funding for NASA's climate research programs.
Scientists are rushing to copy decades of critical climate information that could be altered or destroyed under a hostile Trump Administration.
Two university professors are calling for a hackathon in collaboration with the Internet Archive's End of Term 2016 project, which will archive federal online pages and data that they fear could disappear after Jan. 20, 2017. Separately, the ad-hoc Climate Mirror project seeks to store key datasets and keep them publicly available.
The Climate Science Legal Defense Fund (CSLDF) has published a 16-page guide for government researchers whose work may be suppressed.
"You just don't know what's coming," Adam Campbell, who studies the imperiled Ross Ice Shelf of Antarctica, told the Washington Post.
Sentiment is shared at the DOE, which is why they are refusing to share names with Trump's transition team.
"We are going to respect the professional and scientific integrity and independence of our employees at our labs and across our department," Energy Department spokesman Eben Burnham-Snyder said in an email to The Washington Post.
"We will be forthcoming with all publicly available information with the transition team. We will not be providing any individual names to the transition team."
Trump Team Sparks Fear of 'Witch Hunt' as it Demands List of Climate Experts at Energy Department https://t.co/xvgJSFAANx @project1percent— EcoWatch (@EcoWatch)1481540111.0
The gravest danger to these federal employees may be that they will lose their jobs in an anti-climate purge. "Rather than keep people on the payroll under instructions not to fulfill their position descriptions, it's likely that such positions would be declared surplus," PEER's executive director, Jeff Ruch, told Sierra.
"The election of Donald J. Trump as president puts federal employees administering and enforcing environmental and public health protections squarely on the front lines of a battle—a battle they did not choose," stated Public Employees for Environmental Responsibility (PEER).
In response, scientists are speaking out. "We cannot normalize science denial," the Union of Concerned Scientists stated.
On Nov. 30, more than 2,300 scientists published an open letter to Trump urging him to allow them to "conduct their work without political or private-sector interference." And, a Dec. 6 letter from 800 Earth scientists, also to the president-elect, stated:
"You have the support of the majority of companies, military leaders, scientists, engineers, and citizens to respond to the threats posed by climate change by reducing carbon pollution and expanding clean energy. Many of America's largest cities and states are already committed to doing so. We urge you to decide if you want your Presidency to be defined by denial and disaster, or acceptance and action."
Concerns over preserving climate data and protecting Department of Energy jobs is far from the only environmental issue raised by the incoming Trump Administration.
President-elect Donald Trump has named Scott Pruitt to head the U.S. Environmental Protection Agency (EPA). Pruitt, Oklahoma's attorney general, is a party to a 28-state lawsuit seeking to to overturn the Obama Administration's Clean Power Plan. He has sued the EPA eight times.
In the final hours of Ohio's lame-duck session, lawmakers passed House Bill 554 late Thursday night, which will freeze clean energy mandates for another two years if Gov. John Kasich signs the bill. More than 25,000 jobs could be at risk.
The state's original Renewable Portfolio Standard (RPS), SB 221, was passed in 2008. It set a target for the state to get 25 percent of its electricity from "advanced energy sources" by 2025, with a requirement that at least half (12.5 percent or more) would be generated from "renewable energy resources," including one-half of one percent from solar and 50 percent of the energy to be generated within the state.
A two-year freeze was enacted when Gov. Kasich signed SB 310 on June 13, 2014. HB 554 now seeks to extend that freeze, making renewable energy targets voluntary for utilities. Ohio is the only state in the nation that has frozen its RPS. To date, 38 states have adopted RPS targets.
Wake Up Ohio Lawmakers and Unfreeze Your Renewable Energy Standards https://t.co/B5xPMrIVzU @BusinessGreen @GreenCollarGuy— EcoWatch (@EcoWatch)1477613710.0
"Ohio's renewable energy and energy efficiency standards have been frozen for the past two years, costing the state its place as a national leader in the clean energy economy by hampering energy innovation, investment, and jobs," said Dick Munson, Midwest clean energy director for Environmental Defense Fund. "Before the freeze, these standards saved families money and brought huge investments into the state, supporting more than 25,000 jobs, saving Ohioans over $1 billion on their electricity bills, and slashing the Buckeye State's air pollution."
A 2015 survey by Environmental Entrepreneurs (E2), a national, nonpartisan group of business owners and investors, showed that job growth in the clean energy sector in Ohio slowed to just 1.5 percent following implementation of the freeze in 2014. Moreover, those firms that did grow had to find business out of state.
"Investments in renewable energy in Ohio have dried up," stated the E2 report. "Solar development has ground to a halt, with new solar resources dropping below 100 kW per month when industry averages for the six months prior stood at 1 MW or more per month."
One example is First Solar. The company employs 1,200 people in Ohio and spends $100 million a month on its production and research labs in the Toledo area, according to testimony by its director of regulatory affairs Colin Meehan. The Cleveland Plain Dealer reported that the company would "take a hard look at staying in Ohio" if HB 554 were enacted.
A manufacturing associate at work in First Solar's Perrysburg, Ohio plant.Source: First Solar
Nationally, renewable energy grew to 16.4 percent of total installed capacity in 2015. Job creation in the solar sector grew 12 times faster than overall job creation. The green workforce in the U.S. now numbers 2.5 million.
"The Ohio House of Representatives did a great disservice to the people of Ohio," said Trish Demeter at the Ohio Environmental Council. "This rushed and sloppy legislation will have untold impacts on electric bills, result in dirtier air, and stifle economic innovation and job growth."
"Newly published emails confirm the influence of utility and industry lobbyists on 2015's controversial Energy Mandates Study Committee report, which recommended an extension of the freeze on Ohio's clean energy standards," said Dave Anderson, policy and communications manager for the Energy and Policy Institute. The emails were obtained from state legislators by the Energy and Policy Institute via a public information request, and were not available publicly before now.
"In one August 18, 2015 email addressed to several Republican state policymakers and 10 industry lobbyists, Ohio Senator Bill Seitz suggested that 'we should be meeting as a small group to figure out what that report is going to say.' The following month, the Energy Mandates Study Committee that Seitz referenced in his email issued a contentious report that recommended extending the freeze on Ohio's clean energy standards indefinitely.
"Seitz's email went to lobbyists for American Electric Power, Dayton Power & Light, Duke Energy, and FirstEnergy, as well to Samuel Randazzo, a lobbyist for the Industrial Energy Users of Ohio and anti-wind attorney."
Source: Energy and Policy Institute
Seitz is a member of the American Legislative Exchange Council (ALEC), the Koch brothers-backed group that supplies corporate-friendly model bills to state legislators. In 2012, ALEC joined with the Heartland Institute, a think tank described by DeSmogBlog as "at the forefront of denying the scientific evidence for man-made climate change," to write model legislation aimed at repealing renewable energy standards across the country.
Prior to the 2014 freeze on Ohio's renewable energy portfolio standard, emails show a trail of energy industry lobbyists working with Seitz.
The question now is whether Gov. Kasich will sign or veto HB 554.
Changes to HB 554 are accepted 55-34. It now goes to Gov. Kasich for approval #OhioHouseSession https://t.co/qwP3P1TP8D— Ohio House GOP (@Ohio House GOP)1481266001.0
In response to a reporter's question on Nov. 30, Kasich said, "I just would hope the legislature will not have a headline that Ohio went backward on the environment." But he did not say that he would veto the bill.
During the governor's aborted presidential campaign, he took an "all sources" approach to energy supply and said that he would approve the Keystone XL pipeline. He also touted his job creation in Ohio without mentioning that many of those came from the clean energy sector. The Environmental Entrepreneurs report numbers Ohio clean energy jobs at 89,000 from 7,200 businesses.
If he does veto HB 554, it's questionable whether the legislators could override it. Most, but not all, Republicans voted for the bill.
"Today, Ohio lawmakers decided to significantly stall the state's clean energy efforts, putting politics over economic growth. The governor should continue the leadership he has demonstrated and reject this harmful legislation, so Ohio can get back to work building its clean energy economy, opening the door to well-paying jobs and millions in investment," Munson said.
"Governor Kasich has an opportunity to show that Ohio's energy policy is not for sale to utility lobbyists by vetoing HB 554 and unfreezing clean energy in the Buckeye State," Anderson concluded.
For the third day in a row, air pollution blanketed Paris, which authorities called the worst bout for at least 10 years. The city imposed driving restrictions and made public transit free.
#Paris aujourd'hui. La preuve de la nécessité de réduire la place de la voiture en centre-ville #pollution https://t.co/R10Tdu4o2Y— Anne Hidalgo (@Anne Hidalgo)1481035096.0
Unusually calm air failed to disperse vehicle emissions and particulates from wood fires, creating conditions that have veiled the Eiffel Tower in a gray haze.
Paris has instituted a system based on alternating odd or even license plate numbers to ban certain vehicles from city streets, effectively cutting traffic in half each day. This is just the fourth time in 20 years that Paris has taken this step, and the first time it has been in place for consecutive days.
"Cars are poisoning the air," Paris city hall transport official Herve Levife told Reuters. "We need to take preventive measures."
"We want these bans to automatically take effect when the pollution exceeds a certain level, not have to negotiate them with the government each time," Levife added.
#Paris Goes Car-Free First Sunday of Every Month https://t.co/NOd8Lc5qdt @ClimateReality @sierraclub @Greenpeace https://t.co/xmUwjLRsLx— EcoWatch (@EcoWatch)1463503788.0
More than 1,700 drivers were issued tickets for violating the ban on Tuesday, which carries a fine of 35 Euros, or about $37.42. Hybrid and battery electric vehicles, as well as those carrying three or more passengers, are exempt.
All public transit was made free, putting a strain on commuter systems as crowds piled onto trains and buses. The city's bike-share system was also free to use.
Along with Paris, the French cities of Lyons and Villeurbanne were expected to impose similar measures.
Air quality index readings reached or exceeded 150 on Thursday, considered a "critical" level.Air Pollution in Paris: Real-time Air Quality Index Visual Map
Readings of particulate matter exceeded 80 micrograms per cubic meter. The European Union has set a maximum daily average of 50. Particulate matter, due to its small size, can be inhaled deeply into lungs. High exposure can cause asthma, lung cancer, cardiovascular disease, respiratory diseases, birth defects and premature death.
Beginning July 1, Paris banned all cars 20 years or older. Longer-term, Paris and three other cities—Athens, Madrid and Mexico City—will ban diesel engines by 2025 as announced earlier this week. Diesels area major emitter of particulate matter pollution.
In March 2015, the air quality index in Paris briefly made it the worst polluted city in the world.