[henderson field]

The biggest cause of pollution is immigration and you'll notice that the so-called environmentalists never oppose immigration. So how sincere can they be? Their main goal in life is to re-name lands that are already protected from development. In truth, farmers, ranchers and Ducks Unlimited have done far more for the environment than all the "environmentalists" and the EPA put together.

[alienken]

True. But I think the number one polluter is the volcano.When there is an eruption you hear the experts talk about how that one eruption puts more pollution in the air more than what man has ever done. Think about how many volcano eruptions there has been on the earth since the beginning. We need to keep pollution to a minimum for our own breathing but it is not going to break the sky.