In an open letter defending a controversial project, Canada's natural resources minister accuses a pipeline's opponents of colluding with 'radicals' and 'jet-setting celebrities'
Damian Carrington: In public, Canada's environment minister says tar sands are "sustainable", in private the government says there is no "credible scientific information" to support this
Damian Carrington: LibDem MEP Chris Davies berates UK government for accepting Canada's "special pleading as though it were gospel truth", after letter to EU contradicts it
Damian Carrington: Transport minister Norman Baker's justifications for blocking an EU plan to penalise the heavily polluting fuels are frankly laughable. Take a look and judge for yourself
29 Nov 2011: Letters: It is shameful that in the very week when global climate change talks resume in Durban, the UK government is backing the self-interested claims of large oil companies