Greenland’s vast ice sheet is in the grip of a dramatic “feedback loop” where the surface has been getting darker and less reflective of the sun, helping accelerate the melting of ice and fueling sea level rises, new research has found.

The snowy surface of Greenland started becoming significantly less reflective of solar radiation from around 1996, the analysis found, with the ice absorbing 2% more solar energy per decade from this point. At the same time, summer near-surface temperatures in Greenland have increased at a rate of around 0.74C per decade, causing the ice to melt.

Climate scientists have bad news for governments, energy companies, motorists, passengers and citizens everywhere in the world: to contain global warming to the limits agreed by 195 nations in Paris last December, they will have to cut fossil fuel combustion at an even faster rate than anybody had predicted.

Joeri Rogelj, research scholar at the International Institute for Applied Systems Analysis in Austria, and European and Canadian colleagues propose in Nature Climate Change that all previous estimates of the quantities of carbon dioxide that can be released into the atmosphere before the thermometer rises to potentially catastrophic levels are too generous.

Carbon emissions may have peaked already in China, years earlier than its leaders pledged, according to a study co-authored by the world-renowned economist Lord Stern.

The country’s emissions have fallen, partly as a result of its globally relevant economic slowdown, and partly owing to government policies to pursue a low-carbon path and reduce the rampant air pollution in its major cities.

The prolonged plunge in fossil fuel prices is rippling across the globe. Yet it’s barely put a dent in the booming market for clean energy, heralding perhaps a new era for wind and solar.

Oil prices of less than $30 a barrel—the lowest in 12 years—have shaken stock markets and ravaged the budgets of major producers such as Russia and Saudi Arabia. Along with falling gas prices, they’ve slashed the profits of fossil fuel companies, which are delaying dozens of billion-dollar projects and laying off thousands of workers.

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.