It could take as little as a 1.5 degree rise in global temperature to thaw Siberia permanently, potentially releasing catastrophic levels of cartbon dioxide and methane from the soil.
There's one obvious reason why it's easier for a species to survive a gradual environmental change than a sudden one: more individuals stay alive when change is gradual or moderate, meaning there are more chances for a winning mutation to emerge.
Extreme rainfall events are becoming more and more commmon across the globe as climate change brings higher temperatures, researchers say.
Global warming could be a lot less extreme than feared, according to a new study which finds that worldwide temperatures have levelled off.
A new study indicates that the last interglacial period may give us a picture of where the planet is headed now, as greenhouse gases increase and temperatures rise.
Glaciers in the Andes are retreating faster than ever, say researchers, with global warming causing them to shrink by as much as half since the 1970s.
Long-term global warming has brought the world five times as many record-breaking hot months worldwide - ten times as many in parts of Europe, Africa and southern Asia. And it's only going to get worse.
Some good news, for a change: a new genetic analysis indicates that many Amazon tree species are likely to survive global warming in the coming century, contrary to previous findings.
In a blow to those people who believe that global warming predictions are just a lot of hot air, an international team has established that predictions made 20 years ago are turning out pretty accurate.
Many governments are still failing miserably to keep global carbon emissions low enough to limit global warming to the two-degree-Centigrade international target.
Far from dooming us to runaway global warming, manmade carbon emissions may be saving us from an ice age fueled by carbon sequestration in peatland.
As much as 44 billion tons of nitrogen and 850 billion tons of carbon stored in arctic permafrost could be released into the environment over the next century by the effects of global warming.
Extreme temperatures meant it took five million years for the Earth to recover from the greatest mass extinction of all time.
Scientists say they've discovered clear evidence for the much-disupted theory that global warming leads to more hurricanes in the US.
Human beings have been pumping methane into the atmosphere since Roman times, in enough quantity for it to show up in the Greenland ice sheet.
Fish of all species look set to shrink in size by up to a fifth as the oceans continue to warm.
Recently discovered ancient forests in Canada's extreme north could be thriving again by 2100, new research indicates.
Sea otters are an up-to-now unsuspected ally in the fight against global warming, say scientists from UC Santa Cruz.
Global warming could mean more biodiversity on Earth, not less - just as long as we're prepared to wait several million years. In the short term, things don't look so good.
A massive reservoir of the greenhouse gas methane could be lying hidden beneath the Antarctic Ice Sheet, in a ticking time bomb for climate change.