Oil sands may not generally be seen as being related to "sustainable energy", but on the other hand consideration of the ecological impacts of oil and gas are an important part of achieving sustainability in energy (albeit non-renewable). Also, there were attempts earlier this year to pass off tar sands as a sustainable energy source. :)

From: The Times of India - December 03, 2008

Quote:CALGARY, Alberta: A coalition of North American environmental groups says the development of Canada's oil sands region threatens to kill as many as 166 million birds over the next five decades and is calling for a moratorium on new projects in the region.

The coalition's groups, which include the Natural Resources Defense Council, the Boreal Songbirds Initiative and the Pembina Institute, say petroleum-extraction projects in the oil-rich region of northern Alberta are a threat to migratory birds and the boreal forest they rely on. Their study concluded that development of the oil sands, would be fatal for 6 million to 166 million birds because of habitat loss, shrinking wetlands, accumulation of toxins and other causes.

The solution, the groups say, is to halt new projects in the oil sands and to clean up existing facilities. They are also calling for strengthened regulations to protect Canada's vast boreal, or northern, forest and for Alberta, whose government has backed oil sands developments, to prove the resource can be exploited without serious environmental harm. "People need to take a hard look at whether this can be mitigated or if tar sands development is just incompatible with conservation of bird habitat," said Susan Casey-Lefkowitz, a senior attorney with the Natural Resources Defense Council.

The report estimates about half of North America's migratory birds nest in the boreal forest and between 22 million and 170 million birds breed in areas that could be subject to oil sands development. The oil sands contain the biggest oil reserves outside the Middle East but the crude is expensive and difficult to extract. Mining projects strip large areas of land to access the oil-laden soils below the surface.

Read Full Article: Canada oil sands seen threatening millions of birds | Flora & Fauna | Earth | The Times of India