'How many more wake-up calls do world leaders actually need?': Day one at Cop27

In an opening speech, the head of the UN’s panel of climate scientists highlighted the urgency of cutting greenhouse gas emissions and adapting to the effects of global warming.

Waiters from historic St Mark's Square cafes walk to work in the high tide in Venice, Italy. Picture: Stefano Mazzola/Getty Images

Representatives from all over the world came together in Egypt today to discuss how to tackle the climate crisis on day one of Cop27.

The conference is happening against a backdrop of extreme weather events and an ongoing energy crisis.