A major study links long-term air pollution, especially sulfur dioxide, to higher depression risk, urging stronger pollution controls to protect mental health. A landmark study published in Environmen ...

Kilometers above the Earth’s surface, the ozone layer protects humanity and all life from the sun’s harmful ultraviolet rays.

The rate at which the planet is warming has sped up since 2010, and now researchers say that China's efforts to clean up air ...