"WASHINGTON -- From roads and bridges to power plants and gas pipelines, American infrastructure is vulnerable to the effects of climate change, according to a pair of government reports released Thursday."

"OTTAWA — Canada’s energy producers received a rare boost in their efforts to expand the market for oil sands bitumen on Thursday when the country’s National Energy Board approved the reversal of a Canadian pipeline."

"GRAND PORTAGE, Minn. — For moose, this year’s winter-long deep freeze across the Upper Midwest is truly ideal weather. The large, gangly creatures are adapted to deep snow: Their hollow fur insulates them like fiberglass does in a house. And the prolonged cold helps eradicate pests that prey on moose, like ticks and meningeal worm, or brain worm. Yet moose in Minnesota are dying at an alarming rate, and biologists are perplexed as to why."

"A dozen years ago, neighborhoods around Riverside, an hour’s drive east of Los Angeles, had the nation’s worst soot: Every three days, on average, the air was declared unhealthful, and people were breathing twice as many microscopic particles as deemed safe."