China vowed to nearly triple its wind and solar capacity during the next decade, as President Xi Jinping joined other world leaders at a UN climate summit focused on new emissions targets.
Mr Xi’s statement was the most consequential at a virtual summit that included more than 70 heads of state, hosted by Boris Johnson, the UK prime minister, and French president Emmanuel Macron to mark the fifth anniversary of the Paris climate accord.
António Guterres, UN secretary-general, called on all countries to declare a “climate emergency”, saying the world needed to cut emissions 45 per cent by 2030, relative to 2010 levels, to limit global warming.
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