Coronavirus Shutdowns Causing Huge Drops in Traffic, Air Pollution
The novel coronavirus that has caused a global pandemic is also having an enormous impact on the environment, according to new satellite data. As governments around the world have restricted people from moving, industry, air travel and vehicular traffic have grinded to a halt, causing pollution levels to plummet, according to The New York Times.
"This is the first time I have seen such a dramatic drop-off over such a wide area for a specific event," says Fei Liu, an air quality researcher at NASA's Goddard Space Flight Center, as CNN reported. "I am not surprised because many cities nationwide have taken measures to minimize the spread of the virus."
While President Trump does not enjoy watching the U.S. economy slow down and the markets lose value, the coronavirus is helping his erroneous assertion that the U.S. has the cleanest air in the world.
Areas that have been COVID-19 hotspots, like China and Italy, have already seen huge reductions in air pollution. Now the same trend is happening in major U.S. cities like Los Angeles, Seattle, New York, Chicago and Atlanta where rush hour congestion has vanished as trucks and cars are no longer choking the streets, according to The New York Times.
"Air pollution levels as observed by satellite are showing drastic improvements in many areas that have been undergoing restrictive quarantines due to COVID-19," Peter DeCarlo, an associate professor of environmental health engineering at Johns Hopkins University, told Newsweek.
"But it's [also] very clear that airline passenger numbers are way down, as many countries introduce travel bans and meetings/conferences/work-related travel is canceled. Industrial activity is also reduced, but not necessarily to the extent of traffic. For example, power plants still need to run to produce electricity, water treatment plants still need to continue to treat water, etcetera," he said.
Satellite imagery taken over the U.S. in the first three weeks of March shows less nitrogen dioxide over the country than the same period last year, according to data from the European Space Agency, as CNN reported.
Nitrogen dioxide levels are driven by burning fuels, as well as emissions of cars, trucks, buses, power plants and off-road equipment, according to CNN.
The New York Times noted that freeway traffic in Los Angeles, which is usually at a standstill during rush hour, was moving at a brisk 71 miles per hour.
"There's basically no rush hour anymore, or at least not what we would recognize as a rush hour," said Trevor Reed, a transportation analyst at INRIX, a company that analyzes traffic data from vehicle and phone navigation systems, to The New York Times.
A similar trend is happening in the Bay Area, where crossings of the heavily trafficked Bay Bridge that connects San Francisco to Oakland have dropped by 40 percent, according to the California Department of Transportation, as The New York Times reported.
In New York City, researchers from Columbia University noticed remarkable dips in carbon levels over New York City, which declined more than 50 percent below normal levels. We've never seen anything like the drop we saw starting last Friday," said Roisin Commane, an assistant professor at Columbia who conducts the air-monitoring work, referring to March 13, The New York Times reported.
"We often see dips during weekends or over holidays, but this is completely different."
The drop in pollution levels is mirrored around the world, wherever people are staying home to try to stop the spread of the novel coronavirus. In China, nitrogen dioxide levels dropped 35 percent, and up to 60 percent in some cities. Similarly, reductions of up to 40 percent were seen in Milan, according to Newsweek.
Marshall Burke, an assistant professor at Stanford's Department of Earth System Science, said the improved air quality might save between 50,000 and 75,000 people from premature death, according to CNN.
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By Naomi Larsson
For centuries, the delicate silver dove has been a symbol of love and fidelity.
Biodiversity and Habitat Loss<p>Their near extinction is a symbol of the <a href="https://www.dw.com/en/global-biodiversity-outlook-targets-extinction-summit-new-york-pledge/a-54932895" target="_blank">biodiversity crisis</a> in the UK, largely driven by habitat destruction. Britain is now one of the countries with the most <a href="https://www.wwf.org.uk/future-of-UK-nature#:~:text=The%20UK%20is%20one%20of,than%20half%20are%20in%20decline" target="_blank">depleted nature</a> in the world according to the World Wildlife Fund. Half its plant and animal species are in decline and more than <a href="https://www.rspb.org.uk/about-the-rspb/about-us/media-centre/press-releases/let-nature-sing-wales/#:~:text=a%20natural%20tragedy.-,Over%2040%20million%20birds%20have%20vanished%20from%20UK%20skies%20in,unaware%20of%20the%20impending%20danger" target="_blank">40 million birds</a> have vanished in just half a century.</p><p>"[Turtle doves] are the canary in the [coal] mine because there are all these other species before it and after it," said Tree. "It's an umbrella for all the other species that are heading that way."</p><p>Turtle doves migrate south through Europe to sub-Saharan Africa between July and September, ending up in dry woodland and farmland areas of countries like Mali and Senegal for winter. </p><p>Droughts in West Africa and the Sahel region are believed to have contributed to the fall in turtle dove species recorded in northern Europe, with low rainfall reducing supplies of the seeds and insects the birds rely on for energy for the long journey home.</p>
Conservation and Farming<p><a href="https://www.operationturtledove.org/" target="_blank" rel="noopener noreferrer">Operation Turtle Dove,</a> a partnership project of charities including the Essex Wildlife trust, works with landowners and farmers to actively build turtle dove habitat.</p><p>Outten works with <a href="https://www.ebws.org.uk/birdsites/blue-house-farm-ewt-north-fambridge" target="_blank">Blue House Farm</a>, a 660-acre nature reserve in the UK county of Essex, where they have replicated weedy fallow plots. </p><p>"We work on it every year to make sure it's in the condition it needs to be with plants such as clovers and black medic," Outten said. "These plants are native to the landscape and produce the seed the birds feed on." </p><p>The birds eat a wide range of seeds from various plants that would have been abundant 50 or 100 years ago, added Guy Anderson, program manager for species recovery with The Royal Society for the Protection of Birds (RSPB). </p><p>"But it's simply true that with the gradual process of <a href="https://www.dw.com/en/farming-without-pesticides-how-can-we-make-agriculture-greener/a-52216796" target="_blank" rel="noopener noreferrer">intensifying our agricultural production</a>, the availability of those seeds has dropped and dropped," said Anderson.</p><p>Part of the project includes supplementary feeding — providing sources of food in the form of seed or grain. Under the Countryside Stewardship Scheme in England, farmers can receive financial support to create a turtle dove habitat. </p><p>Though they haven't recorded an increase in doves across the sites in the four years of working on the project, Outten said they are seeing improvements in how landowners and farmers manage habitat for the birds. </p>
A Turtle Dove Haven<p>The 3,500-acre Knepp Estate in West Sussex is another project taking a different approach and one of the few places where turtle dove numbers are increasing.</p><p>Isabella Tree and her husband Charlie Burrell converted their intensively farmed land into a rewilding project almost 20 years ago. They have let the land return to nature.</p><p>Just one year after they'd finished <a href="https://www.dw.com/en/uks-most-talented-architects-are-not-human/a-35952128" target="_blank">rewilding</a> the southern part of their property, they heard turtle doves for the first time. It's now a breeding hotspot for the birds with an estimated 19 pairs. Knepp is also home to <a href="https://www.rewildingbritain.org.uk/rewilding/rewilding-projects/knepp-estate" target="_blank" rel="noopener noreferrer">2% of the UK's population</a> of nightingales. </p><p>Tree is critical of supplementary feeding schemes that, in her view, are short term. She questions the chances of turtle doves getting to feed on scattered seeds before other mammals eat them first.</p>
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