"A single holdout could mean indefinite delay. The situation shows how difficult it will be to export Alberta oil sands to Asia."

"CORVALLIS, Oregon -- The climate's 'new normal' for most of the coming century will parallel the long-term drought that hit western North America from 2000 to 2004 -- the most severe drought in 800 years - scientists report in a study published Sunday."

"MONTREAL -- More than 150 international and Canadian public health organizations and individual scientists are demanding a worldwide ban on the mining, export and use of asbestos."

"WHITEHORSE, Yukon Territory — In February 1942, President Franklin D. Roosevelt gave the Army Corps of Engineers an assignment: Build a road from British Columbia across the Yukon to Alaska — in eight months, before winter sets in."

"A dispute between Canadian pipeline giant Enbridge Inc. and a small Colorado operator is flaring into a political showdown over whether U.S. domestic production will be squeezed out by oil sands crude flowing from across the northern border."

"OTTAWA -- Several hundred Canadian scientists and their supporters held an unprecedented protest march on Tuesday to demonstrate against the government's decision to close down major facilities and fire research staff."

"Two years ago this month, an oil pipeline burst in Michigan, contaminating 38 miles of the Kalamazoo River. It didn't get much national notice because everyone was focused on the massive BP oil spill in the Gulf of Mexico."

"Canada's prime minister, Stephen Harper, faces a widening revolt by the country's leading scientists against sweeping cuts to government research labs and broadly pro-industry policies. The scientists plan to march through Ottawa in white lab coats on Tuesday in the second big protest in a month against the Harper government's science and environmental agenda."

"Prime Minister Stephen Harper’s government has been weakening Canada’s environmental regulations and slashing funds for oversight and research — all while promoting aggressive resource development. Critics warn these unprecedented actions pose a major threat to the nation’s vast natural heritage."