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Aerial picture of the Villanueva photovoltaic (PV) power plant operated by Italian company Enel Green Power in the desert near Villanueva, a town located in the municipality of Viesca, Coahuila State, Mexico, taken on April 20, 2018. Alfredo Estrella / AFP / Getty Images

By Gero Rueter

Solar energy has become extremely cheap. In the desert of Saudi Arabia electricity from solar modules is now generated for just $0.01 (€0.009) per kilowatt hour (kWh), and in Portugal for $0.014 cents per kWh.

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imaginima / E+ / Getty Images

During summer, there's really nothing better than diving into a cool, refreshing pool, but once fall and winter roll around, you may be looking for something to keep water temperatures a little higher. Investing in one of the best solar pool heater systems is an energy-efficient way to keep your pool warm year-round.

As you shop, keep in mind that not all solar pool heaters are created equal. What's the best solar pool heater for your home? Consider a few of the top options available in 2021.

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Elenathewise / iStock / Getty Images

Embracing solar power means reducing both your reliance on traditional utility companies and your environmental footprint, but the high upfront cost of solar panels can be a big deterrent for some homeowners.

If you're considering solar, you may have questions like: How much does it cost to install a solar energy system? What are some of the factors that can impact pricing? What else should home- and business owners know about going solar? In this article, we'll touch on each of these important topics, with the goal of helping you make a fully informed, financially responsible decision about solar energy.

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A motel sign destroyed by a wildfire in Oregon in 2020. The climate crisis is one example of how a 1972 study warning of limits to growth appears correct. ROB SCHUMACHER / POOL / AFP via Getty Images

In 1972, a group of Massachusetts Institute of Technology (MIT) scientists published an alarming prediction: If industrial society continued to grow unchecked, it would exhaust Earth's resources and lead to civilizational collapse by the middle of the 21st century.

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Climate activists and Indigenous community members gather on the river for a traditional water ceremony during a rally and march to protest the construction of the Enbridge Line 3 pipeline in Solvay, Minnesota on June 7, 2021. KEREM YUCEL / AFP via Getty Images

By Kenny Stancil

In a development progressives called a "huge legal win in the fight against Line 3," a Minnesota court on Friday ordered police in Hubbard County to stop impeding access to the Giniw Collective's camp, where anti-pipeline activists have been organizing opposition to Enbridge's multibillion-dollar tar sands project.

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Svetlana Gomboeva of Team ROC is treated for heat exhaustion during the Tokyo 2020 Olympic Games at Yumenoshima Park Archery Field on July 23, 2021 in Tokyo, Japan. Justin Setterfield / Getty Images

The 2020 Summer Olympics kicked off in Tokyo on Friday and there are already signs the toughest part of the competition may just be the extreme heat and humidity in what is expected to be the hottest Olympics on record.

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Vanishing: Song for the Bobolink

In the diminishing refrains of a bird's call, signs of our world disappearing around us.

Insights + Opinion
A bobolink in Golden Gate National Recreation Area, San Francisco, CA. Jason Crotty / CC BY 2.0

What happens to us as the wild world unravels? Vanishing, an occasional essay series, explores some of the human stakes of the wildlife extinction crisis.

Our small family knew bobolinks from a bird refuge four hours away. Each spring my partner and I made the trip to Oregon's Malheur National Wildlife Refuge with our daughter in hopes of seeing the 90-plus species of migratory birds we typically spotted over the course of a binoculared weekend. As we headed West we anticipated the winnowing, sky-dance displays of Wilson's snipe, the oranges of Bullock's oriole flashing high in the cottonwoods, and the bright spots of sunshine that dart through riparian thickets — the yellow warbler.

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Italy Bans Large Cruise Ships From Venice

The restriction will come into effect at the beginning of August, the Italian government has confirmed. Campaigners say the liners cause damage to Venice's ecosystem.

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MSC Magnifica is seen from one of the canals leading into the Venice Lagoon on June 9, 2019 in Venice. Miguel MEDINA / AFP / Getty Images

Large cruise ships will be banned from entering the Venice lagoon as of August 1, the Italian government announced Tuesday.

It follows years of warnings they risk causing irreparable damage to Venice's ecosystem.

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Two-time WSL Champion John John Florence of Hawaii on Dec. 20, 2020 in Oahu, Hawaii. Tony Heff / World Surf League via Getty Images

By Sally Warner

For the first time, surfing is on the Olympic stage.

The surfing event will last for three days and has to run within the dates from July 25 to August 1. The reason for this window? Not all waves are created equal, and organizers and surfers will wait for the best day full of the best waves to hold the competition.

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adamkaz / Getty Images

A good RV camper offers the serenity of nature along with the basic comforts and conveniences of the modern world. To make your travels more eco-friendly, it's smart to invest in one of the best solar panels for RV use.

Gas generators are fairly common in the RV world, yet they tend to be quite noisy and can disrupt your outdoor idyll. A better option may be to embrace the clean, renewable energy of the sun, investing in solar panels to keep everything in your RV humming along.

In this article, we'll break down the five best solar panels for RVs and what to look for when buying a solar power system for your RV.

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Australia Lobbying Thwarts Push to List Great Barrier Reef as Endangered

Greenpeace Australia called Friday's World Heritage Committee vote "a victory for one of the most cynical lobbying efforts in recent history."

Oceans
A green sea turtle is flourishing among the corals at lady Elliot island. Jonas Gratzer / LightRocket / Getty Images

By Jake Johnson

An intense lobbying campaign by the pro-fossil fuel Australian government succeeded Friday in keeping the Great Barrier Reef off a list of World Heritage Sites considered "in danger," despite experts' warnings that the biodiverse ecosystem is increasingly imperiled by the global climate emergency.

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A group of inmate firefighter watch as the El Dorado Fire burns a hillside near homes in Mountain Home Village, California, inside the San Bernardino National Forest, Sept. 9, 2020. Kyle Grillot for The Washington Post / Getty Images

A California couple's gender reveal party went wrong when they set off a pyrotechnic device that ignited the 2020 lethal El Dorado fire, which killed a firefighter and set blaze to more than 22,000 acres of land. They've been charged with 30 crimes, including involuntary manslaughter, local authorities announced on Tuesday.

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Researchers found 28 previously unknown viruses in the glaciers of the Tibetan Plateau. Wolfgang Kaehler / LightRocket via Getty Images

Researchers have uncovered 33 viruses preserved in ancient glacier ice, and 28 of them are previously unknown to science.

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