UK thinktank: ban new petrol and diesel cars in 2030, not 2040

Green Alliance says ending UK sales earlier would close climate target gap and halve oil imports

Huge profits in store for firm that can make a great leap in battery technology

The problems of storing and carrying energy for our gadgets and homes are proving difficult to solve. But a breakthrough is sorely needed

Oil company records from 1960s reveal patents to reduce CO2 emissions in cars

ExxonMobil and others pursued research into technologies, yet blocked government efforts to fight climate change for more than 50 years, findings show