"About 10 per cent of Alberta’s 1,500 abandoned oil and gas wells in urban areas are leaking methane, in some cases at levels that create the risk of health damage and explosions, according to an unreleased 2016 report."

"Toxic chemicals in the Great Lakes have dropped but invasive species and algal blooms threaten the lakes' ecosystems and keep them from being truly great, says a new report from the U.S. and Canadian governments."

"Fewer of North America's Atlantic salmon are making it back to rivers to spawn, which bodes poorly for the future of the imperiled fish, an international conservation group says."

"OTTAWA — The timing was coincidental, but the meeting had a new urgency. One day after President Trump withdrew the United States from the Paris climate accord — saying he was elected to serve Pittsburgh, not Paris — the transport minister in Prime Minister Justin Trudeau’s cabinet visited with the mayor of Pittsburgh to discuss climate change."

"As global temperatures rise and the oceans warm, what used to be 500-year floods are now happening more frequently."

"Unrelenting rain will drench the already saturated U.S. Midwest on Thursday and Friday, forecasters said, after floods in the region killed at least five people and forced residents in vulnerable areas to evacuate their flooded communities."

"A subsidiary of Petronas, the Malaysian state-owned petro giant courted by the B.C. government, has built at least 16 unauthorized dams in northern B.C. to trap hundreds of millions of gallons of water used in its controversial fracking operations."

"Bison calves have been born in Alberta's Banff National Park for the first time in 140 years, Parks Canada officials said on Tuesday, marking a milestone in attempts to reintroduce a wild herd to the area."