Credit agency teams up with Carbon Tracker Initiative to analyse long-term creditworthiness of firms investing in Canadian oil sands
Secretary of state's meeting with Canadian foreign minister will almost certainly touch on the controversial pipeline project
Supporters hope state-wide cap-and-trade scheme could provide a model for the rest of the country
Opposing campaigners call on president to end uncertainty over controversial pipeline linking US to Canadian tar sands
Scientists to march through Ottawa in white lab coats in protest at cuts to research and environmental damage
Draft proposals for state's emissions trading scheme raise possibility of cross-border sharing of allowances and credits
Panel manufacturer evaluates opportunities in the UK as it looks to expand project development activities
Latest data shows modest rise in emissions, despite pledge to slash carbon output by 2020
UK among large number of abstentions as vote forces final decision back on ministers
A move to formally label the controversial energy source as carbon-intensive is unlikely to be passed or rejected outright