Water Tar Sands The Tar Sands "Gigaproject" is the largest industrial project in human history and likely also the most destructive. The tar sands mining procedure releases at least three times the CO2 emissions as regular oil production and is slated to become the single largest industrial contributor in North America to Climate Change.
Tar sands are an increasingly common—but expensive and dirty—source of oil. Pembina Institute Tar sands also known as oil sands are a mixture of mostly sand, clay, water, and a thick, molasses-like substance called bitumen.
Bitumen is made of hydrocarbons—the same molecules in liquid oil—and is used to produce gasoline and other petroleum products. Extracting bitumen from tar sands—and refining it into products like gasoline—is significantly costlier and more difficult than extracting and refining liquid oil.
The largest deposits of tar sands are found in Alberta, Canada. While tar sands have been in production since the late s, and currently account for about 5 percent of all U. Environmental impacts of tar sands Surface mining versus in situ tar sands extraction. This important difference is attributable to the energy intensive extraction, upgrading, and refining process.
Unfortunately, the carbon emissions associated with extracting tar sands could increase over time, as in-situ mining—which creates more emissions than surface mining—is used to extract bitumen located deeper and deeper in the earth.
Tar sands also impact water supplies. For every gallon of gasoline produced by tar sands, about 5. Much of this water is polluted by toxic substances harmful to human health and the environment. When surface mining is used, the wastewater ends up in toxic storage ponds.
These ponds can cover over 30 square miles—making them some of the largest man-made structures on the planet.
When in-situ mining is used, wastewater is stored in the same well the bitumen is extracted from—risking contaminated groundwater if a leak occurs. Half the Oil By investing in practical solutions to cut projected U.The environmental consequences of oil production from tar sands are major, beginning with its effect on climate change.
North America's transition to oil from the tar sands not only perpetuates, but actually worsens, emissions of greenhouse gas pollution from oil consumption.
The environmental consequences of tar sands development hardly stop with climate change. Nowhere in the world is there a form of oil extraction and processing with more intense impacts on forests and wildlife, freshwater resources, and air quality. Tar sands (also referred to as oil sands) are a combination of clay, sand, water, and bitumen, a heavy black viscous leslutinsduphoenix.com sands can be mined and processed to extract the oil-rich bitumen, which is then refined into oil.
The bitumen in tar sands cannot be pumped from the ground in its natural state; instead tar sand deposits are mined, .
"Tar Sands exposes the disastrous environmental, social and political costs of the Alberta oil sands and argues forcefully for a change." - Prairie Books Now " Tar Sands provides an excellent guide to all of the environmental repercussions of .
Knight was describing tar sands, a sludgy deposit of sand, clay, water, and sticky, black bitumen (used to make synthetic oil) that lies beneath northern Alberta’s boreal forest in a region the size of Florida. While tar sands have been in production since the late s, and currently account for about 5 percent of all U.S.
gasoline, production has been scaling up—which could have serious consequences for the air, water, and climate.