Two scientists in Siberia have discovered why the Arctic permafrost is melting. They say reintroducing millions of bison and elk to the steppe ecosystem could help stop global warming.
Four Lithuanians are going on an expedition to the Siberian wilderness to find out more about their grandparents' tragedy when they were deported by Stalin. Karolis Vysniauskas reports from Vilnius.
Have wildfires increased globally over recent years? And if so, is global warming to blame? Research has illuminated this, along with what wildfires do to us and our environment, and which areas are most vulnerable.
Some people are skeptical that human activity is driving global warming. We take a look at the most common arguments used by climate deniers, and set the record straight.
More than 20 people were recently sickened by anthrax in Siberia. It's thought a heat wave thawed permafrost there, releasing the bacteria. What else could climate change unleash from frozen ground that's melted?
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