Oil

Commercial viability of carbon intensive Canadian tar sands hit by combination of falling oil prices and regulatory concerns

As RGGI's second auction gets underway report claims emissions caps could be much higher than needed

Oil cartel expected to slash production by record levels as it attempts to push up prices in face of economic downturn

International Energy Agency report calls for rapid switch to low carbon economy to protect against risk of $200-a-barrel oil

International Energy Agency claims "current global trends in energy supply and consumption are patently unsustainable"

The company will face a lawsuit on its home territory over its activities in Nigeria

UK and Masdar sign memorandum of understanding to develop clean technologies

Agreement to bolster investment in UK clean tech and lay foundations for Qatari low carbon research centre

Non-executive chairmen advised to start asking questions over threat posed by dwindling oil supplies

Canadian government is criticised for abdicating responsibility in the region