Ozone as a layer several kilometers up in the atmosphere protects living beings, including humans, from ultraviolet rays. But its accumulation at ground level can be very dangerous, Mongabay ...

This story originally appeared on Yale Environment 360 and is part of the Climate Desk collaboration. Sequoia National Park’s famous groves of stout, 300-foot-tall trees sit high on the western side ...

Ozone is an invisible, odorless gas that can either protect us or harm us depending on where it is found. Since at least the 1950’s the United States has been monitoring and regulating the amount of ...