Long-term inhalation of toxic air appears to dull the protective power of regular workouts, according to a massive global study spanning more than a decade and over a million adults. While exercise ...

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Long-term exposure to toxic air can substantially weaken the health benefits of regular exercise, suggests a new study by an international team including UCL (University College London) researchers.

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 ...

Steam and pollution emerge from a coal-fired power plant in Wyoming. The Environmental Protection Agency under President Trump is taking a new approach to regulating air pollution. In a reversal from ...