In the year 2020, the 1990 Clean Air Act Amendments will prevent over 230,000 early deaths, according to the US EPA. Their 2011 study found the Amendments to be cost effective, with benefits exceeding costs by a factor of more than 30 to one. The Clean Air Act provides tremendous value in improved health outcomes as well. It is supported by the American people and business interests. So, it was disturbing to read that the oil industry is working to scale it back by undermining the science behind it.