Brazilian emissions set to plunge by 42 per cent on 2005 levels by 2030 as President Dilma Rousseff announces huge expansion of renewables sector to match.

An NDP government would allow provinces to opt out of federal plan if their own emissions-reduction strategies are as good as or better than Ottawa's.

Charging large emitters up to $50 a tonne for carbon emissions would produce the best result - but that price would also raise electricity costs more than any other .

As 40 world leaders meet with Ban Ki-moon in New York to hammer out roadmap to a low-carbon future, Harper turns his back yet again.

The U.S. and China took significant steps Thursday to align climate change policy, creating new pressure on Canada to follow suit

Trican's revolving credit facility from its bank lenders will be reduced to a maximum of $410 million from $575 million.

Bank will dedicate $4 billion to fighting climate change by ramping up support for green energy - and spending on global warming will rise to 30 per cent of its financing.

Nations aiming for global climate pact in Paris in December must commit to a world where all 7 billion people have equal rights and access to electricity, opportunity, and justice, says minister.

More and more patches of brown, dead, foilage cropping up on trees up to 3,000 years old.

A new report says international trade deals must be amended to prevent corporate lawsuits in the wake of the Paris climate change talks

Clinton follows up Keystone opposition with ambitious climate proposal including negotiations towards a North American climate compact.

Former First Lady turns Canadian oil into a Democrat vs. Republican fight -

Swedish energy giant is shifting energy strategy away from carbon-heavy power sources.