COP26 has come to a close. What does the outcome mean for the future of the planet? We measure it against earlier landmarks of environmental summitry. 

Gro Harlem Brundtland, a former Norwegian prime minister and pioneer of environmental dealmaking, tells us the process is yielding results. And science fiction author Kim Stanley Robinson makes the case for optimism.

Hosted by Vijay Vaitheeswaran, The Economist’s global energy and climate innovation editor, with environment editor Catherine Brahic, and Oliver Morton, our briefings editor.

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