In this video, Bill McKibben, Mustafa Ali, Maggie Gyllenhall, Jim Hansen, Katharine Hayhoe and others tell the story of climate change.

Both McKibben and Hansen were involved in the early days of the climate change movement, and speak to the history of the process with authority.

It’s a relatively short video at around 12 minutes, but does a great job of summarizing the most important facts about climate change and putting its history in perspective.