TransCanada has launched a lawsuit for $15bn in lost investment, claiming Obama overstepped Constitutional authority in rejecting the controversial pipeline
Home of Canadian tar sands reveals ambitious plan to price carbon and slash emissions
President Obama is the latest global figure to weigh in on the increasingly tangible risk of stranded carbon assets. But will investors buy in?
"America is now a global leader when it comes to taking serious action to fight climate change and frankly approving this project would have undercut that global leadership"
US energy giant and oil sands body stump up funding for carbon capture technology prize
Presidential candidate says the controversial project is a 'distraction' and not in the best interests of 'what we need to do to combat climate change'
How is the fossil fuel industry responding to growing pressure to address future emissions in the run-up to the Paris summit?
More than 100 US and Canadian scientists publish letter saying tar sands crude should be relegated to fuel of last resort, because it causes so much pollution
Analysis from Oil Change International says 30 projects that would have produced 1.6 million barrels of oil a day are on hold
Research on behalf of the Financial Times shows oil majors have shelved or delayed 26 schemes, including nine tar sands projects
Environmentalists say Harper administration has little chance of meeting the 2030 goal while tar sands expansion continues
Divestment campaigners claim victory as university announces it will exclude companies involved in coal mining and tar sands from its investment portfolio, but others claim it does not go far enough
Vice chancellor says 'abrupt shift' from fossil fuels could hit world's poorest
Growing concern over tightening climate regulation and stranded asset risks prompts investors to look again at fossil fuels
New tool aims to keep investors aware of fossil fuel industry capex trends, as companies respond to oil price crash by shelving $33bn worth of projects
President rejects bill approving controversial project, accusing Congress of trying to cut short 'thorough consideration' of the pipeline's potential impacts
Environmental Protection Agency deals blow to tar sands pipeline plans as analysis suggests project would lead to "significant increase" in emissions
But supporters fall short of votes needed to overturn promised Presidential veto
President uses State of the Union to warn that he will not let Congress turn back the clock on climate action
'If this bill passes this Congress, the president wouldn’t sign it'
President gives clearest indication yet that he is deeply sceptical about case for controversial tar sands pipeline
MEPs fail to overturn Commission plans that would effectively consider oil from tar sands the same as standard petrol or diesel
Bill just fails to secure the 60 votes it needed to pass, but second Senate push could be made in the New Year
Controversial bill supporting project will be debated in the Senate after winning House approval, but President is expected to veto it