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Greenpeace calling for Imperial Oil to be charged over releases of the toxic wastewater

Exemption will apply an 80 percent reduction in the tax at the point of sale

While emissions from electricity generation have fallen in recent years, those coming from vehicles and the oil and gas industry have both increased

The company has been under fire in recent months for its environmental performance

Plan contains few details on the pace of investment and construction required to achieve goals

It's the carbon equivalent of removing about 470,000 gas-burning cars off the road for one year.

'The Alberta system, when it comes to the Alberta regulator, is completely broken and should be dismantled,' says chief of Athabasca Chipewyan First Nation

Wind and solar generation have hit a global turning point in weening the grid off fossil fuels. Some experts say Canada needs to build five times faster to catch up.

Work being done in the West Â鶹´«Ã½Ó³»­lab could be of ‘planetary significance,’ says Ocean Wise

OTTAWA — Canada's spy service warns that climate change poses a profound, ongoing threat to national security and prosperity, including the possible loss of parts of British Columbia and the Atlantic provinces to rising sea levels.