BBC News Climate
Global climate summit
The last time Wales experienced a drought it was 1984, and water restrictions were put in place.
By Matt McGrath
By Merlyn Thomas
By Jenny Hill
BBC News, Rhineland-Palatinate
By Helen Briggs
Video filmed by emergency services shows the weather phenomenon in a field.
Extreme temperatures could have an impact on health and transport.
A company in Norway has developed a kite that generates electricity.
By Steffan Messenger
Weather presenter Stav Danaos explains why the UK is facing an amber heat warning.
By Victoria Gill
Science correspondent, BBC News
By Climate Editor Justin Rowlatt and Climate and Science reporter Georgina Rannard