Like many other politicians, Joe Biden talks a good game about the need to tackle global heating. Climate change is an “existential threat”, the US president said last week, as America sizzled amid record-breaking temperatures.
Biden had to do something in response to what António Guterres, the UN secretary general, described as the boiling of the planet. The White House announced a series of measures – such as improved access to drinking water and planting more trees – in response to what has been the hottest month on record.
