"Some of the main beneficiaries of weaker laws are the oil, gas and coal industries, which spend millions each year lobbying legislators and government officials. According to data published by the Center For Responsible Politics, House Republicans received more than four times the campaign contributions as Democrats from these industry groups.
Now there is a new fight in the offing over EPA rules announced earlier this month which would tighten restrictions on soot, tiny particles which are a risk factor in a variety of diseases including heart attack, lung cancer, stroke and asthma."