Why aren't environmentalists concered with natural oil seeps in the ocean?

Question

Where is the uproar over natural oil seeps that allow millions of gallons of oil into the ocean every year? The complaints about drilling not being safe are ridiculous compared to what mother nature is doing to herself. Environmentalists need to stop listening to the news/clueless politicians, and research on their own about the precautions companies take when drilling offshore.

Answer 1

Because they can't realistically blame it on humans, or more specifically, President Bush.

Answer 2

Because they are powerless to do anything about it.