With warming set to pass the critical 1.5-degree limit, scientists are warning that the world is on course to trigger tipping points that would lead to cascading consequences — from the melting of ice sheets to the death of the Amazon rainforest — that could not be reversed.
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Solutions
In Hunt for Rare Earths, Companies Are Scouring Mining Waste
Tailings and acid mine drainage from mines contain critical minerals needed for clean energy technologies. Now, researchers are developing new techniques for retrieving these key metals, which could reduce the need for new mines and help clean up pollution at old mining sites.
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Oceans
Sea Star Murder Mystery: What’s Killing a Key Ocean Species?
Billions of sea stars, victims of a deadly wasting illness, have perished over the last decade, imperiling marine ecosystems and spurring a global hunt for a biological or environmental culprit. Recently, researchers identified a likely suspect, but the case is far from closed.
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Solutions
Plagued by Flooding, an African City Reengineers Its Wetlands
As climate change and urbanization intensify flooding in Rwanda, the capital of Kigali has embraced nature-based solutions. The city is restoring and reshaping 18,000 acres of degraded wetlands, planting native species to filter and slow runoff, and enhancing biodiversity.
FILM
At a Marine Field Station, Rising Seas Force an Inevitable Retreat
The scientists at a New Jersey marine station are conducting a sobering experiment: monitoring the destruction of their facility from rising waters. Oscar-winning filmmaker Thomas Lennon shows how the researchers are working to produce useful science before they must leave.
E360 Digest
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Polar Bears Are Thriving on This Arctic Island, Even as Sea Ice Dwindles
In parts of the Arctic, polar bears are in decline as sea ice, which they depend on to hunt, disappears. That is not the case, however, on the Norwegian island of Svalbard, where bears have actually managed to grow more plump even as ice melts away. More about Polar Bears Are Thriving on This Arctic Island, Even as Sea Ice Dwindles →
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Europe to Ramp Up Offshore Wind in Push for Energy Independence
A group of European leaders pledged Monday to build 100 gigawatts of offshore wind, enough to power more than 50 million homes. As Europe faces a hostile Russia and an increasingly bellicose U.S., experts see deepening risks in its reliance on imported fossil fuels. More about Europe to Ramp Up Offshore Wind in Push for Energy Independence →
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Global Investment in Clean Tech Hit a New High Last Year
Global investment in clean tech reached a record-high $2.3 trillion last year, according to an analysis. Investment grew even in the U.S., despite a sweeping rollback of government support for clean energy. More about Global Investment in Clean Tech Hit a New High Last Year →
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SPACE
Scientists Warn of Emissions Risks from the Surge in Satellites
With hundreds of satellites launched each year and tens of thousands more planned, scientists are increasingly concerned about an emerging problem: emissions from the fuels burned in launches and from the pollutants released when satellites and rocket stages flame out on reentry.
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WATER
After Ruining a Treasured Water Resource, Iran Is Drying Up
Iran is looking to relocate the nation’s capital because of severe water shortages that make Tehran unsustainable. Experts say the crisis was caused by years of ill-conceived dam projects and overpumping that destroyed a centuries-old system for tapping underground reserves.
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Energy
To Feed Data Centers, Pennsylvania Faces a New Fracking Surge
A rash of data centers planned for western Pennsylvania has residents and environmentalists on edge. The sprawling complexes will be powered by plants that burn fracked natural gas, whose production has caused air and water pollution in the region and has known health risks.
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WILDLIFE
A Troubling Rise in the Grisly Trade of a Spectacular African Bird
Researchers are finding a disturbing uptick in the trade of African hornbills and their body parts in West African voodoo markets and globally on the internet. Conservationists want international protections for these birds, which play a key role in Africa’s forest ecosystems.
Living With Wildlife
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As Jaguars Recover, Will the Border Wall Block Their U.S. Return?
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Despite Criticism, the Last of the Rattlesnake Roundups Hang On
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As Wolf Populations Rebound, an Angry Backlash Intensifies
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Octopuses Are Highly Intelligent. Should They Be Farmed for Food?
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Deadly Encounter: Mountain Lion Attacks Spark Controversy