资讯

In other words, an area larger than Connecticut stands to be affected by tar sands extraction. As oil prices continue to rise, investors are throwing more and more money into tar sands expansion.
That said, do we approve of tar sands extraction? The environmental issues ... its impact on the global oil market. Extracting an extra million barrels of oil from Canadian tar sands wouldn ...
Tar sands and oil shale are considered by green groups to be more damaging than normal oil operations because extraction is highly carbon and water-intensive. “Tar sands — bitumen that is ...
Carbon-neutral extraction would do nothing to cut the bulk of oil-related emissions that come from combustion. Eco-friendlier tar sands could also encourage unconventional development elsewhere ...
oil production from such in situ operations surpassed that of mining for oil in the tar sands—a trend that is only likely to increase as more oil sands production comes online in Canada.
“It’s weeping oil,” says Clark, a geologist with a Canadian firm called Petroteq Energy that is poised to extract marketable crude from tar sands south of Vernal on aptly named Asphalt Ridg ...
The price of crude oil has slumped to its lowest point in six years, and that has sent some major oil companies scrambling to get out of expensive tar-sands projects in Alberta, Canada. Shell has ...
You have full access to this article via your institution. Oil-mining operations in Canada's main tar sands region are releasing a range of heavy and toxic metals — including mercury ...
The oil product extracted from Canada's tar sands isn't like conventional crude. Known as bitumen, it's sticky and so thick, it can't flow down a pipeline without extensive processing. There are ...
This slurry is then taken to facilities to extract the bitumen ... it takes large quantities of energy to access tar sands oil. Approximately 14-25% of the energy obtained from tar sands is ...
The debate about oil-sands extraction has become polarized ... Water quality — in which I have expertise and have done research in the tar-sands area — is not the only, or even the main ...
The state of Utah has begun making preparations for its own major tar sands and oil shale extraction projects. According to one U.S. government report, land in the region could hold up to three ...