Green builders have an uneasy relationship with chainsaws and bulldozers. To some environmentalists, these noisy inventions conjure up images of ecosystem destruction and irresponsible land development.
However, just like a hammer or a level, a bulldozer is just a tool. It can be used for good or ill.
Bulldozers are extremely handy when you need to change the grade of a site. Grading matters, and novice builders who ignore grading will eventually be forced to pay attention to the topic.