by Ari Phillips Mar 6, 2015
The study's results are especially timely as the Obama Administration struggles to update ground-level ozone standards and implement the Clean Power Plan.
by Ari Phillips Feb 19, 2015
India and China, where air pollution is off the charts in many urban areas, are the first countries to implement the new program.
by Emily Atkin Mar 3, 2014
The new rules will result in "dramatic" emissions reductions for smog-forming and cancer-causing pollutants.