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The US has unveiled an updated carbon pledge that will nearly halve its emissions by 2030. The announcement came at a virtual summit on climate at the White House, and Thanu Yakupitiyage of climate action group 350 gives us her response to the news. Avijit Das is chief executive of Eveready, which manufactures small wind turbines in Africa, and discusses what role wind power can play in the future energy mix. And David Waskow, director of the International Climate Initiative at the World Resources Institute in Washington explains what cities need to do to become more environmentally friendly. Also in the programme, there's a meeting at the World Trade Organisation devoted to a proposal from South Africa and India to temporarily waive patent protections on vaccines, in a bid to boost global vaccine supply. South Africa's trade and industry minister Ebrahim Patel makes the case for such a move. Plus, our regular workplace commentator, Peter Morgan, examines recent research by Microsoft indicating that many bosses may be oblivious to the number of people who will be looking to move on from their teams once the pandemic is over.

(Picture: President Biden addresses the climate summit. Picture credit: EPA.)