He called his project 'The Evidence of Man.' "It made me think about what happens when man has finished with something, then walks away. There's a kind of melancholic disintegration there, as nature begins its work of pulling that thing back into the ground. When I'm photographing something in the industrial landscape, I'm looking at whatever is that residual thing." Burtynsky went on to photograph quarries in Vermont (and) railway cuts in Western Canada ... Human activity is in these photographs but it is ghostly, and implied by what isn't there- the departed stone that has left cubist shapes in the quarries, the food that was once inside the thousands of compressed tin cans.
Burtynsky has now found his "most ambitious project- China's Three Gorges Dam." His photography will document "the massive, unprecedented relocation of whole cities, brick by brick" that has displaced millions of Chinese people. I think I remember reading that the Three Gorges Dam will provide enough electricity for 1/10th of China's population.