Imminent loss of NASA's Aura and Canada's SCISAT will severely diminish scientists’ ability to monitor ozone-depleting substances in the stratosphere.

Earth’s protective ozone layer is on track to fully recover from human-made damage following the near total phasing out of ozone-depleting substances, according to a UN-backed report.

The Portland metro area lands in the middle of the pack for ozone pollution, according to a new report from the American Lung ...