A major claim, in addition to the normal potential pipeline breakage and leakage, is the alleged toxicity and "badness" of the tar sand
In a letter to Secretary of State Hillary Clinton, Waxman said, "Extracting tar sands
bitumen and upgrading it to synthetic crude oil produces roughly three times greater greenhouse gas emissions than producing conventional oil on a per unit basis.
The process of extracting oil from the tar sand
produces up to four times as much green house gas emissions.
Last Wednesday, in an event organized by Climate Action Network Canada, about 50 young Canadian activists rallied at the COP15 summit for a moratorium on the tar sands
work, both for its environmental and human rights impacts.
The Canadian Tar Sands
campaigners hope people from all over Wales will be at Y Plas, Machynlleth, on Thursday, November 19.
Professor Sephton, who led the team at Imperial College London, said: "We aim to show the technique could be used to recycle the prodigious amounts of water necessary to process tar sand
Occurrence of seepage and tar sand
deposits over the Okitipupa ridge in the Dahomey basin provided the initial impetus for oil exploration in Nigeria.
Now a researcher says spectral measurements of the dark side resemble those of tar sands
For the tar sands
to be viable, the price needs to be $65-$100 (US) a barrel--in July 2015 it was around $50.
project, Keystone XL, will bring in more crude from the Canadian sands production (sometimes called "tar sands
") into the U.S.
There are approximately 100 tar sand
projects (comprising 3,200 mining leases, covering an area the size of Maryland) planned in Canada, with at least $200 billion dollars already invested.
The safe exploitation of tar sand
deposits depends on finding methods to clean up these pollutants.