A Forest Threatened by Keystone XL[
http://www.nytimes.com/2014/11/18/opini ... egion&_r=1 ]
By ANDREW NIKIFORUK NOV. 17, 2014
CALGARY, Alberta - ENVIRONMENTALISTS typically fret about the prospect of adding monstrous new amounts of carbon dioxide into the atmosphere if the Keystone XL pipeline is approved, and for good reason.
Bitumen, the low-grade petroleum in Canada’s tar sands that would be carried by the pipeline to the United States, emits an estimated 17 percent more greenhouse gases overall than an average barrel of crude refined in America, according to a report earlier this year by the Congressional Research Service. [
http://fas.org/sgp/crs/misc/R42537.pdf ]
But for a vast stretch of western Canada’s boreal forest, the fight over extracting bitumen has already been lost. The question is, how much more will we lose?
Since the mining frenzy for this garbage crude took off in 2000, nearly two million acres of this ancient forest have been cleared or degraded, according to Global Forest Watch — a swath more than six times the size of New York City. If Keystone XL and other proposed pipelines are approved and bitumen production grows, much more forest will be lost.
The Senate is expected to vote Tuesday on the long-delayed pipeline. The House approved it last Friday. President Obama has signaled that he would probably veto it. But even if he does, with Republicans set to take control of Congress in January and only two years left in the president’s term, no one thinks that would mean the end of Keystone XL.
Ground zero in this fight is in western Canada, where the forest hugs the northern flowing Athabasca River. The Athabasca deposit is the largest of three bitumen formations in Canada. This tarry mixture of sand, water, clay and bitumen, which the Cree used to heat up to repair leaky canoes, lies under a northern forest of spruce and aspens roughly the size of Florida.
The shallow deposits are scooped up by huge electric shovels and then hauled away in 400-ton-capacity trucks to mills that separate the bitumen from the sand. The waste is then dumped into lakes of polluted sludge. But most of the bitumen lies so deep in the frozen ground that it must be melted with steam and then pumped to the surface for processing. This requires steam injection plants that blast scalding steam into the ground through wells.
Basic mathematics underscores the absurdity of this brute-force enterprise. A study last year found that one unit of energy was required to produce the equivalent of five units of energy from the open-pit mines. For steam-extracted deposits, the ratio was roughly 1 to 3. [
http://insideclimatenews.org/news/20130 ... it-bitumen ] As the Canadian economist Jeff Rubin put it several years ago, “when you’re schlepping oil from sand, you’re probably in the bottom of the ninth inning in the hydrocarbon economy.”
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http://www.nytimes.com/2014/11/18/opini ... egion&_r=2 ]