The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

For years, the Environmental Protection Agency has assigned a dollar value to the lives saved and the health problems avoided through many of its environmental regulations. Now, that has changed. The ...

Marathon runners consistently finished slower in cities with higher levels of dangerous particles in the air, researchers found. By Hiroko Tabuchi and Brad Plumer Every marathon runner has had a bad ...