death of evidence

Wed, 2012-11-14 21:04Carol Linnitt
Carol Linnitt's picture

Toxic Tar Sands: Scientists Document Spread of Pollution, Water Contamination, Effects on Fish

Today federal scientists from Environment Canada presented research at an international toxicology conference in the U.S. that indicates contaminants from the Alberta tar sands are polluting the landscape on a scale much larger than previously thought.

A team lead by federal scientist Jane Kirk discovered contaminants in lakes as far as 100 kilometers away from tar sands operations. The federal research confirms and expands upon the hotly contested findings of aquatic scientist David Schindler who, in 2010, found pollution from the tar sands accumulating on the landscape up to 50 kilometers away.

“That means the footprint is four times bigger than we found,” Schindler told Postmedia News.

Senior scientist Derek Muir, who presented some of the findings at Wednesday's conference, said the contaminated region is “potentially larger than we might have anticipated.” The 'legacy' of chemicals in lake sediment gives evidence that tar sands pollution has been traveling long distances for decades. Samples show the build up of polycyclic aromatic hydrocarbons, or PAHs, known to cause cancer in humans and to be toxic to aquatic animals, in 6 remote and undisturbed lakes up to 100 kilometers away from tar sands operations.

The pollutants are “petrogenic” in nature, meaning they are petroleum derived, and have steadily and dramatically increased since the 1970s, showing the contaminant levels “seem to parallel the development of the oilsands industry,” Muir said.

Thu, 2012-11-08 10:33Carol Linnitt
Carol Linnitt's picture

"Stephen Harper Hates Science": Federal Scientists Muzzled to Protect Tar Sands Reputation

The Canadian government is working hard behind the scenes to cover up the negative effects that tar sands extraction is having on the local environment, wildlife, communities and the global climate. According to Access to Information documents obtained by Postmedia's Mike De Souza, the Stephen Harper government has actively suppressed the release of vital information regarding the spread of tar sands contamination by muzzling federal scientists.

The gag order, according to De Souza, came on the heels of a newly researched government report in November 2011 which confirmed the findings of University of Alberta scientists Erin N. Kelly and David Schindler. The scientists discovered concentrations of toxics such as heavy metals were higher near tar sands operations, showing a positive correlation between tar sands activity and the spread of contaminants in the local environment.

The government of Canada and the government of Alberta denied the correlation, saying local waterways tested showed no signs of toxic contamination and reports of mutated and cancerous fish downstream from the tar sands were unfounded.

Subscribe to death of evidence