Growth of the Alberta tar sands from 1984 to 2011

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NASA has posted a series of satellite photos documenting the expansion of the Athabasca tar sands. The Athabasca pits cover over 54,000 square miles in Alberta with an estimated reserve of 1.75 trillion barrels of oil - good enough for third in the world behind Saudi Arabia (1) and Venezuela (2).

Production increases noticeably from the mid-1980s to present day:

Visible in the pictures are the tailing ponds holding contaminated water and material from the extraction process, along with surface stripping.


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So, in light of the near-certain death of the Keystone XL pipeline, will Canada's tar sand production continue to grow in the coming years? Or do environmental stewardship and carbon consciousness counter the global demand for cheap energy?

All photos courtesy of the NASA/Goddard Space Flight Center.

Update: A few of us have been discussing these pictures on Twitter. Apparently NASA's Earth Observatory site has satellite images for every year between 1984 and 2011, along with a scale to put the distances in perspective. Check them out to see the year-to-year progression. Thanks, Matthew.

David Wogan is an engineer and policy researcher who writes about energy, technology, and policy.

David's academic and professional background includes a unique blend of technology and policy in the field of energy systems. Most recently, David worked at Austin Energy, a Texas municipal utility, implementing a Department of Energy stimulus grant related to energy efficiency. Previously, David was a member of the Energy & Climate Change team at the White House Council on Environmental Quality for the Obama Administration.

David holds two Master's degrees from The University of Texas at Austin in Mechanical Engineering and Public Affairs. While at UT, David was a researcher in the Webber Energy Group, where his research focused on advanced biofuel production to offset petroleum use in the transportation sector. David holds a Bachelor's of Science degree in Mechanical Engineering from The University of Texas at Austin, where he researched nuclear non-proliferation measurement technology.

David is a 2013 Aspen Institute Journalism Scholar, joining a select group of journalists from Slate, ABC News, and The New York Times.

David lives in Austin, Texas. Follow along on Twitter or email him at david.wogan@me.com.

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