How air pollution is heating up Southern Ocean
Researchers have identified a lesser-known form of ozone playing a big role in heating the Southern Ocean — one of Earth’s main cooling systems.
Ozone is a gas composed of three oxygen atoms. Many studies have described ozone in the stratosphere, and its role in shielding people from the sun’s harmful ultraviolet radiation. Closer to ground level, in the troposphere, ozone is harmful to humans.