‘The antidote to despair is action’: Lesley Hughes on motivation through a climate crisis - video

Lesley Hughes was one of the first scientists to warn that global heating could lead to species extinctions. Now one of Australia's most influential climate science advocates, Hughes speaks with Guardian Australia about the importance of hope in the face of a crisis.

This video is part of Weight of the World: a climate scientist's burden. The series features three pioneering Australian climate change scientists - Graeme Pearman, Lesley Hughes and Ove Hoegh-Guldberg. The series tells the story of how the three scientists made their discoveries, how they came under attack for their science and the personal toll it has taken on them. And importantly, how they stay hopeful.

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• See the other pieces in our series Weight of the world: a climate scientist's burden

• Hope has to be a strategy': the scientist who refused to let the climate warmongers win