On thin ice. This aerial view of the sea ice in East Greenland was captured by photographer Florian Ledoux using a drone 250 metres above sea level. Scientists have estimated that 2019 could be a record year for ice loss in Greenland. The melt season began weeks earlier than usual, and ice thawed faster than normal for the spring and summer months. During a summer heatwave, inland temperatures rose 12 °C above average and about 55 billion tonnes of ice melted in just 5 days.

Burst banks. Pictured here in 2010, Idle Kasow, a chief of the Korlabe village in eastern Kenya, struggles in flood water after torrents during the rainy season caused the banks…