The World Resources Institute is now 40 years old, but how have the world's climate challenges changed in that time? And how has WRI evolved to meet them? In this podcast, Ani Dasgupta talks about 4 decades of climate action, about technology, growing global awareness of climate change, and the need to make sure climate action is about equity as well as carbon reduction. Former WRI presidents Gus Speth and Jonathan Lash also feature. WRI Big Ideas Into Action podcasts are produced and presented by Nicholas Walton.