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...

The COP26 conference is taking place amid an energy crisis. How will political pressures on the negotiators from activists, public opinion, and a troubled energy market influence the outcome? UN Deputy Secretary-General Amina Mohammed tells us why the negotiations are so important to the poor...

As the COP26 climate conference begins in Glasgow, much is at stake. Will the leaders gathered there be able to reach an agreement to slow global warming? US climate envoy John Kerry tells us why he is optimistic. We report from Australia, one of the rich countries lagging in its climate...