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How frigid polar vortex blasts are connected to global warming

As Chicago plunges to wind-chill temperatures of -60°C many might be wondering where global warming has gone. It's all connected.

The Arctic recently sent us a powerful message about climate change

It's not just freezing temperatures across Europe that have scientists worried. The Arctic is warming twice as fast as the rest of the globe - a worrying trend and a clear sign that now i...

Is climate change causing extreme weather in the US?