gaz de schiste
Gaz de schiste
L'association 'No Fracking France' a organisé fin août un voyage d'études sur le gaz de schiste au Québec et (elle) a proposé à des journalistes de l'accompagner. Le reportage qui a été diffusé dans l'émission Complément d'Enquête sur France 2, le jeudi 20 septembre, porte selon l'association préjudice à l'ensemble de la délégation française parties en mission d'information afin d'évaluer les risques et les enjeux sanitaires et environnementaux liés aux exploitations de gaz de schiste outre atlantique. La journaliste de France 2, a contacté 'No Fracking France' au départ pour recueillir des informations et des contacts sur le sujet du gaz de schiste.
Water use and greenhouse gas emissions are major concerns with developing “unconventional” hydrocarbon reserves. The Syncrude Canada Ltd. oil sands mining operation in Alberta, Canada is the largest in the world. For every barrel of oil produced from tar sands mining operations, four to six barrels of fresh water are withdrawn from the Athabasca River, according to experts. By Keith Schneider Circle of Blue Before July 16, when the U.S. Environmental Protection Agency issued its 18-page letter directing the State Department to more carefully assess the considerable risks of the $7 billion Keystone XL oil pipeline from Alberta, Canada to the Gulf Coast, Secretary of State Hillary Clinton was expected to issue a presidential permit approving construction in the fall.
Like or Dislike? i The tar sands are an abomination. In a desperate move to counteract peak oil, Canada and the United States are waging war on Alberta’s ecosystem and indigenous communities, as well as on the planet as a whole.
Posted on 23 August 2011 by dana1981 Beginning on 20 August 2011, Bill McKibben is lead ing what may be the largest green civil disobedience campaign in a generation , against the proposed construction of the 1,600-mile long Keystone XL pipeline. The pipeline would transport oil from the Alberta tar sands in Canada to American refineries at the Gulf of Mexico, and many are concerned about the associated impacts on the climate . Digging up new source s of fossil fuels will inevitably increase the amount of CO2 in the atmosphere , and the tar sands result in higher carbon emissions than even conventional oil. On 15 June 2011, the Energy and Power Subcommittee of the House Energy and Commerce Panel approved a bill to expedite a decision on the pipeline , possibly trying to rush it through before adequate environmental impact assessments are completed.
Satellite images of the Athabasca oil sands in Alberta, Canada, show the expansion between 1984 (left) and 2011. Environmentalists criticise the destruction of forests and pollution of air and water, while Nasa scientist James Hansen says if the oil sands were exploited as projected, the carbon emissions produced would mean it was "game over for the climate". Photograph: Landsat/NASA
The Athabasca oil sands (also called the Athabasca tar sands ) are large deposits of bitumen or extremely heavy crude oil , located in northeastern Alberta , Canada – roughly centred on the boomtown of Fort McMurray . These oil sands , hosted in the McMurray Formation , consist of a mixture of crude bitumen (a semi-solid form of crude oil), silica sand, clay minerals, and water. The Athabasca deposit is the largest known reservoir of crude bitumen in the world and the largest of three major oil sands deposits in Alberta, along with the nearby Peace River and Cold Lake deposits . [ 3 ] Together, these oil sand deposits lie under 141,000 square kilometres (54,000 sq mi) of boreal forest and muskeg (peat bogs ) and contain about 1.7 trillion barrels (270 × 10 ^ 9 m 3 ) of bitumen in-place, comparable in magnitude to the world's total proven reserves of conventional petroleum .
Buried under Canada’s boreal forest is one of the world’s largest reserves of oil. Bitumen—a very thick and heavy form of oil (also called asphalt)—coats grains of sand and other minerals in a deposit that covers about 142,200 square kilometers (54,900 square miles) of northwest Alberta. According to a 2003 estimate, Alberta has the capacity to produce 174.5 billion barrels of oil. Only 20 percent of the oil sands lie near the surface where they can easily be mined, and these deposits flank the Athabasca River.
In the ranking of the world’s proven oil reserves, Canada stands behind only Saudi Arabia. Canada possesses an estimated 178.6 billion barrels of crude oil accessible using current technology. Of this reserve, 174 billion barrels are in Alberta’s oil sand fields, which cover 140,200 square kilometers (54,132 square miles) of the province. The largest oil sand field is Athabasca, shown here. Oil sands consist of sand coated in water and a sticky film of bitumen, a heavy oil. The bitumen can be rinsed from the sand and refined into fuels.
With the rising cost of oil, mining oil sands has become a profitable endeavor in the past decade. Oil sands consist of clay, sand, and other minerals, coated in water and thick, viscous oil called bitumen (or asphalt). To get usable oil from this mixture, producers have to separate the bitumen from the sand using hot water, and then process the bitumen into crude oil. It is an energy-intensive process that until recently cost too much to be profitable.
The United States imports more oil from Canada than from any other country: more than 1.8 million barrels a day on average in 2007 according to the U.S. Energy Information Administration (based on statistics through September). One of Canada’s largest sources of oil is the Athabasca Oil Sands. The oil sands are a mixture of bitumen (a tar-like oil), sand, clay, and water. Unlike many other oil sand deposits in Canada and around the world, the Athabasca Oil Sands are only shallowly buried, which allows them to be surface mined.
The Oil Sands Developers Group (OSDG), formerly known as the Athabasca Regional Issues Working Group (RIWG), is a non-profit oil sands industry-funded association, based in Fort McMurray, that facilitates solutions to shared development issues related to the Athabasca Oil Sands Deposit in Alberta. OSDG shares oil sands developers' information, perspective and advice with affected stakeholders, consults with stakeholders to facilitate solutions to development issues and collaborates with stakeholders while balancing individual and collective company responsibilities. The organization is also tasked with communicating accurate and credible information, analysis and forecasts about the oil sands to its stakeholders and managing an inclusive committee process that is focused on analyzing issues, facilitating solutions and achieving results. <p style="text-align:right;color:#A8A8A8"></p>
4. Highway 63, between Fort McMurray and the Athabasca Oil Sands, Alta. - 10 most dangerous roads in CanadaBy John LeBlanc, MSN Autos On our energy-starved planet, Alberta's Athabasca Oil Sands project - the largest reservoir of crude bitumen in the world - often makes headlines. But as the only all-weather road leading in or out of the town nearest to the oil sands, Fort McMurray Alta., Highway 63 has ended up as one of the most dangerous roads in Canada. Since 2004, traffic to and from the booming city has increased by more than 30 per cent. And between then and 2009, 22 people had died and more than 250 have been injured.
February 9th, 2009 Luc Bouchard, Bishop of St. Paul in Alberta, Canada has issued a strong statement calling the extraction of oil from the tar sands of Alberta, Canada morally wrong and saying it is causing widespread environmental destruction.
Salamanca Refinery The Ing. Antonio M. Amor Refinery in Salamanca in the State of...
Image courtesy Robert Simmon, NASA/Landsat/USGS By the time this image was taken in 1984, the company now known as Suncor Energy had been operating for 17 years here at Fort McMurray ( map ), in the cold, remote, northern reaches of Alberta. When the site opened in 1967, Alberta Premier Ernest Manning called it a "red letter day" for North America. "No other event in Canada's centennial year is more important or significant," he said. Today, the Canadian oil sands, also called tar sands, are recognized as one of the largest reservoirs of petroleum in the world.