More powerful storms are battering people and economies harder, with the poor suffering the worst losses, an annual climate risk index showed, as leaders were urged to ramp up their response to climate change impacts at a global adaptation summit on Monday.

The index for 2019, from research group Germanwatch, showed that Mozambique and Zimbabwe were the two countries hardest-hit by extreme weather. Both were struck by Idai, the deadliest and costliest cyclone recorded in the southwest Indian Ocean.

Just this weekend, central Mozambique was hammered again by another tropical storm, Eloise, which wrecked thousands of buildings, ruined crops and displaced almost 7,000 people.