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
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".
Irony - A situation in which the result is opposite to what you might expect.
National Grid - In the UK, the network of power stations, power lines and electricity infrastructure that brings electricity to buildings.
Met Office - The Meteorological Office is the United Kingdom's national weather service. It was established in 1854 to provide a gale warning service for shipping.
Surrey - A county in south-east England.
Carbon emissions - When a gas is let off from something, like a car, it is an emission. Carbon dioxide, or CO2, is a greenhouse gas that contributes to global warming.