Policymakers must act as extreme weather events put more pressure on food inflation and production worldwide

Your morning – and afternoon – coffee is the latest staple threatened by climate chaos: the price of quality arabica beans shot to its highest level in almost 50 years last week, amid fears of a poor harvest in Brazil.

It follows warnings that orange crops have been wiped out by the catastrophic floods in Valencia, Spain; and the soaring cost of olive oil over recent years, as the southern Mediterranean sweltered.