Carbon dioxide

Our Planet Matters: 'How we've reduced our carbon footprint'
As people assess their impact on the planet, the BBC's Matt Treacy meets three who took action.

Carbon-neutral in 15 years?

Sanna Marin
Getty Images

The country with an ambitious plan

Where is it?

Facts and figures behind our climate and weather
What can the weather tell us about our changing planet? Ben Rich looks at the latest data in the first of our new monthly series, Climate Check.