The mountain episode clearly explains how climate change has caused an increase in avalanches. Notice how I said, as he did, climate change, not 'global warming'. The radical shifts in temperature allow for it to get cold enough for the snow overhangs to form on ridges but it warms suddenly and they fall under their own weight. Bear Grylls doesn't write the narration, it's done by a writer with access to the facts. Everybody should watch this show, it's not all doom & gloom and every episode ends on a hopeful note as climate change is having it's negative effects the wildlife is observed adapting to the changes.
Review of Hostile Planet
