Fred Pearce: A UK government checklist of claims for advertisers will fail to stop cynical greenwash without a legally enforceable framework

Fred Pearce: Forest conservation project in Bolivia proves that unless a nation as a whole cuts deforestation, individual carbon offset schemes are worthless

Fred Pearce: Drax has shelved its biofuel plans, yet still boasts publicly about 'undertaking the largest biomass co-firing project in the world'

Fred Pearce: Qatar announces the future use of biofuels on its airline, but its domestic carbon emissions are shockingly free and easy

Fred Pearce: Oil company has been splashing out on ads about its shallow commitment to low-carbon technologies during Copenhagen

Fred Pearce: Griffin has taken the line of many leading environmentalists that overpopulation is a environmental threat – but he's no green

Fred Pearce: Food manufacturers in Europe called for greener palm oil. The growers supplied it. So why aren't supermarkets buying it?

Fred Pearce: When New Zealand's sink forests are harvested in the 2020s, as is likely, all that carbon will return to the atmosphere

Fred Pearce: Lord of the Rings country trades on its natural beauty, but emissions have risen 22% since it signed up to Kyoto

Fred Pearce: UK ministers talk up the carbon capture research programme as if it were already an available technology