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Sen. Bernie Sanders speaks at a Martin Luther King Jr. Day event in South Carolina on Jan. 21. Sean Rayford / Getty Images

Independent Vermont Sen. Bernie Sanders announced Tuesday that he will run for president in 2020, becoming the latest candidate in a crowded Democratic primary field to promise a Green New Deal if elected, The Washington Post reported.

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Hunting for food and medicine is driving pangolins towards extinction. Jabruson / Nature Picture Library / Getty Images

By Tim Radford

The world's biggest animals—the largest birds, the bigger mammals and even reptiles, sharks and amphibians—are in increasing danger of extinction. Climate change, habitat loss and pollution may all be part of the problem, but the biggest and most direct threat is a simple one.

They are being hunted to death. They are being killed for meat, for trophies such as horns and tusks, and for body parts used in Asian medicine.

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Kanggava Bay on Rennell Island, where a grounded ship is leaking oil, according to some reports. Peter Hendrie / Getty Images

A ship that ran aground in the Solomon islands Feb. 4 is now menacing a coral reef with an oil spill, The Guardian reported Tuesday.

The 740 foot MV Solomon Trader was stranded on a reef near Rennell Island, home to the largest raised coral atoll in the world and a United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage site, AFP reported. The bulk carrier has not been salvaged in the two weeks since it was stranded because of Cyclone Oma, Solomon Islands National Disaster Management Office (NDMO) director Loti Yates told Radio New Zealand early Monday morning.

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Pexels

Today, the U.S. celebrates Presidents' Day, a day to commemorate the leadership and legacy of the so-far only men who have governed the country since its founding.

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Methane bubbles trapped in ice in a Canadian lake. John Bakator on Unsplash

By Tim Radford

As the global temperature steadily rises, it ensures that levels of one of the most potent greenhouse gases are increasing in a way new to science: the planet will have to reckon with more methane than expected.

Researchers who monitored one bog for three years in the Alaskan permafrost have identified yet another instance of what engineers call positive feedback. They found that global warming meant earlier springs and with that, earlier spring rains.

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Pixabay

By John R. Platt

The world needs to change the way it eats, not just as individuals but as a society.

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