Ed Kashi, whose photographs have appeared in publications such as National Geographic and OnEarth, traveled to the Niger Delta to document the devastation wrought on its people as well as on the environment.
So far, rational environmental arguments have largely kept Utah's tar sands, which contain an estimated 12 billion to 20 billion barrels of oil, in the ground. Rising oil prices, however, may soon erase these historic constraints, just as they have done in Canada.