TORONTO -- Permafrost holds carbon dioxide and other greenhouse gases.
Thanks to global warming, permafrost is melting – meaning those compounds are released into the atmosphere.
You might expect that to be a big problem. After all, greenhouse gases in the atmosphere are the key driver of warmer temperatures on Earth.
However, when scientists studied the melting Tibetan plateau – which holds 10 per cent of the world's permafrost – they found that another environmental shift was more than making up for the increased emissions.
As Â鶹´«Ã½ Science and Technology Specialist Dan Riskin explains in this week's Riskin Report, their findings provide a bit of hope that our planet can still help us in the battle against climate change.