Is Britain set for permanent heatwaves? The latest spell of hot weather has experts wondering whether the country faces the same high temperatures this summer as it did last year.
SOS! Light up the fossil fuels to cool down
Alarming warming: Temperatures over 35C are a threat to health, particularly for the elderly. Glossary
National Grid - In the UK, the network of power stations, power lines and electricity infrastructure that brings electricity to buildings.
Greenpeace - An international campaigning organisation based in Amsterdam. Its aim is to "ensure the ability of the Earth to nurture life in all its diversity".
Inherently - Essentially or unfailingly. It comes from the Latin word haerere, meaning to stick.
Loch Ness - A long and narrow lake in Scotland. It is famous for the Loch Ness Monster, a huge creature that some believe lives in the lake.