Elizabeth Kolbert: The A to Z of climate change

Pulitzer Prize-winning journalist Elizabeth Kolbert tells the story of climate change in her new alphabetised essay collection H Is for Hope. As our world warms up, Kolbert hopes the book will help people understand both what's at stake and what is possible. "How are we going to get our minds around this both in an honest way and also in a way that inspires the kind of action that we need, which is absolutely massive changes to our energy systems?"