Although there are natural causes of wildfires, such as lightning strikes, most of them are started by people. Because of high temperatures and dry conditions, they rapidly grow out of control. So far, this year has been exceptional in a number of locations across the world.
A two-week period in June saw a rash of violent flooding across four different continents. In the early morning of Friday 11th June, 20 people were killed after heavy rain in Arkansas, USA, saw water levels in the Little Missouri river rise at up to 2.4m per hour, causing a wall of water to tear through busy campsites at the Ouachita National Forest. On 15th June it was the turn of the French Riviera to suffer under a deluge, when the region experienced its worst flooding since 1827.