To reduce pollution known as ground-level ozone, or smog, the Bush administration’s EPA tightened the ozone standard in 2008 down to 75 parts per billion. But according to an article by policy expert Steven Milloy, the Obama EPA now wants to tighten it further down to 60 or 70 parts per billion, even though it would be enormously expensive and provide no real benefits. Milloy notes the EPA recently produced some very questionable studies which greatly exaggerate typical ozone exposure to back up the call for tighter standards. But while the health effects would be negligible, the price tag would not, as the new standards would cost over one trillion dollars by 2030 and over seven million jobs over the next decade.