Acting EPA Administrator James Payne sent an email to members of the agency's Science Advisory Board and the Clean Air ...

Air quality in San Diego is improving, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to your health. By the numbers: The average percentage of ...

Controlling indoor humidity is a significant challenge in construction and building maintenance. High humidity fosters mold, ...

The White House had planned the pause as President Donald Trump's administration begins an ideological review of spending.