A lawsuit against Canada’s oilsands has been launched by the Cree First Nations in Northern Alberta.

The lawsuit (pdf) pits the Beaver Lake Cree band against the governments of Canada and Alberta, asking the court to rule invalid the government authorization for thousands of petroleum projects on the band’s core territory.

The lawsuit is just the latest in a string of opposition to the massive oilsands projects. Last week, 11 Greenpeace activists were arrested after trying to block a pipeline dumping tailings waste into one of the giant toxic tailings lakes.

For more information on the Alberta Oilsands check out DeSmog’s “Top 10 Facts About the Alberta Oilsands” page.