A team of researchers lead by Florida State University have found new evidence that permafrost thawing is releasing large quantities of greenhouse gases into the atmosphere via plants, which could accelerate warming trends.
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.
It appears that, when Arctic permafrost melts, it can release carbon dioxide gas into the atmosphere much faster than previously thought.
The permafrost covering almost a quarter of the northern hemisphere contains twice as much carbon as is currently in the atmosphere, and could significantly amplify global warming should thawing accelerate as expected.
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.
As the Arctic warms, thawing permafrost will release greenhouse gases faster and in greater amounts than previously believed.
Antibiotic-resistant bacteria are nothing new - they've been around for at least 30,000 years, say scientists at McMaster University.
Thawing permafrost could release billions of tons of carbon into the atmosphere by the end of this century, further accelerating global warming.
Up to two-thirds of Earth's permafrost will probably disappear by 2200, say scientists, unleashing vast quantities of carbon into the atmosphere.