City seeks to be carbon neutral

Britain 'needs deeper CO2 cuts'
More cuts in greenhouse gases by 2020 are needed if the UK is to play its part in combating climate change, an advisory body will say.

UN climate summit seeks clarity
UN climate change talks open in Poland, seeking details on plans for emission cuts and forest protection.

US space shuttle returns to Earth
Nasa's space shuttle Endeavour returns to Earth, landing in California after an eventful mission.

Beached whales die in Australia
About 150 pilot whales die in a mass stranding in a remote coastal area of the Australian island of Tasmania.

Amazon deforestation accelerates
The destruction of the Amazon rainforest in Brazil has accelerated for the first time in four years, officials say.