Resumen de Tar muchly
An image of a solitary pumping boat, sailing on the still waters of an artificial lake in the Canadian province of Alberta is featured. The serenity of the landscape disguises its colossal economic value. Stretching over 93,000 square kilometers under this part of Canada is the Athabasca oil sands, one of the largest deposits of crude oil in the world and the principal source of petroleum for the US
