As traditional pastures dry up, Mongolian herders are forced to move livestock into the big cat’s territory. Now conservationists are stepping in.

Just as the last of the blushing light drained from the sky in western Mongolia, the “ghost of the mountain” struck at the foot of sacred Jargalan mountain where the rocky snow line gives way to a dry and treeless expanse of steppe.

A new NASA study finds that the recent drought that began in 1998 in the eastern Mediterranean Levant region, which comprises Cyprus, Israel, Jordan, Lebanon, Palestine, Syria, and Turkey, is likely the worst drought of the past nine centuries.

Scientists reconstructed the Mediterranean’s drought history by studying tree rings as part of an effort to understand the region’s climate and what shifts water to or from the area. Thin rings indicate dry years while thick rings show years when water was plentiful.

A "warm blob" of surface water played a role in Greenland's wild climate swings during the last ice age, a new study finds.

Greenland's climate flipped quickly and brutally from cold to warm and back again 25 times between about 20,000 and 70,000 years ago, ice cores and ocean sediments show. The abrupt climate swings, called Dansgaard-Oeschger events, involved extreme changes in average temperature. Each time, the cold snaps continued for centuries, while the rapid warming lasted a few decades.

A study by scientists at NASA’s Jet Propulsion Laboratory in Pasadena, California, and Duke University in Durham, North Carolina, shows, in detail, the reason why global temperatures remain stable in the long run unless they are pushed by outside forces, such as increased greenhouse gases due to human impacts.

Lead author Patrick Brown, a doctoral student at Duke’s Nicholas School of the Environment, and his JPL colleagues combined global climate models with satellite measurements of changes in the energy approaching and leaving Earth at the top of the atmosphere over the past 15 years. The satellite data were from the Clouds and the Earth’s Radiant Energy System (CERES) instruments on NASA’s Aqua and Terra spacecraft. Their work reveals in new detail how Earth cools itself back down after a period of natural warming.

Their findings suggest that profound changes lay ahead for these important ecosystems around the world, and that the changes may accelerate global warming.

Although numerous studies have already investigated how tropical forests will be affected by global warming, most of them have involved mature stands of trees.

France is to close down its oldest nuclear power plant, at the center of a row with neighboring Germany and Switzerland, by the end of this year, a green minister said Sunday.

The steel plants and cement factories scattered across China's Shandong province have made it one of the most contaminated areas of the world's biggest polluter. But for one company, that just makes the business climate better.

ASL Masks says it turned out more than 100,000 face coverings last year and aims to more than double that in 2016 as China struggles to shake off the toxic smog produced by its heavy industries.

China on Saturday set less ambitious climate change goals for this year than it achieved in 2015, as the world's biggest polluter struggles to wean itself off harmful fossil fuels.

Beijing has said its emissions of the greenhouse gases that cause climate change will carry on rising until "around 2030".

Canadian regional leaders have ended climate talks Thursday without agreement on a central government goal to establish a carbon pricing plan.

Prime Minister Justin Trudeau wants to set a national carbon price in order to meet an international commitment to slash CO2 emissions that cause global warming.

Honduran indigenous activist Berta Caceres, an award-winning environmentalist, was shot and killed in her home Thursday, her family said, labeling her death an assassination.

Caceres won the 2015 Goldman Prize, considered the world's top award for grassroots environmental activism, for leading the indigenous Lenca people in a struggle against a hydroelectric dam project that would flood large areas of native lands and cut off water supplies to hundreds.