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New developments in battery technology are changing the way Britain is powered.
More delivery trucks means more air pollution in our cities. Tom Heap looks for an answer.
Tom Heap explores the decision to ban sales of petrol and diesel cars in the UK by 2030.
Seagulls are breeding rapidly, thriving and moving inland to more benign conditions.
How the rise in diesel cars may have damaged our health. Tom Heap investigates.
Urban Britain is paving over its front gardens. Jheni Osman discovers the impact.
How arguments about the protection of the Amazon rainforest are playing out in Brazil.