Everyone talks about the Athabaskan Tar Sands but not many have any idea of how big or small this project really is. Below is a map showing the size.
Within the yellow area are what are euphemistically called the settling ponds. Euphemistically called settling ponds because any ship with as many leaks as they have would sink in about 10 minutes. An estimated 11,000,000 liters a day of water are lost into the environment. Water that no one want to drink or bath in. They are also bigger than any pond I have ever seen at roughly 130 sq. km.
|Picture is from Google Earth|
Are the oil sands sustainable in the long term?
Yes, says the Canadian Association of Petroleum Producers. The oil sands are the 2nd largest crude oil reserve in the world, and supply the U.S. with 20% of its crude oil. This proportion can only increase as Saudi Arabia and the Middle East run out of easy oil and Venezuela and the rest of the producers get ever shirtier with our southern neighbours. World surplus oil production capacity will disappear in the next five years, and the global shortfall by 2015 could reach 10 million barrels per day. Biomass is not a substitute for oil in most sectors because of low photosynthetic efficiency (Brazil, the world leader in biomass energy production, burns up just 1/3 barrel of ethanol but 4½ barrels of oil per person annually). Solar and other energy sources are a long way from replacing oil as the main driver of the transportation sector. Current mining and extraction operations affect less than ½ percent of the total oil sand area, so there is a lot more gunk out there to be dug up and processed.
Sustainable? No, say the greens. The current annual CO2 emissions from all this mining and refining are something like 40 million tonnes which is currently 5% of the Canadian total. This level of CO2 output will obviously increase if plans for oil sands expansion are implemented. To keep emissions down to levels consistent with Canada’s greenhouse gas reduction targets, very expensive and untestedproposals for carbon capture and storage will need to be implemented. The tailings ponds stand accused of being leaky, to the tune of 11 million litres of contaminated water per day. Toxic and carcinogenic compounds from the tailings and emissions are contaminating surrounding water and areas and are suspected of causing cancer in local communities. Wildlife, especially waterfowl, are heavily impacted by oil sand operations and tailings disposal. By 2020 the projected water use in the oil sands will be an estimated 45 m3/s which is nearly half the Athabasca River’s low winter flow during eight of the years since 1980 and in every year since 1999. The Peace-Athabasca Delta downstream of the oil sands is already exhibiting negative effects of declining water supply from climate change and the impacts of the upstream Bennett Dam in B.C.
I am not a scientist so I will leave it to smarter people than me to decide the above question. But I am not so dumb that I don’t know when something is ugly and deadly;
This is both ugly and deadly