Ozone
Extremely rare, beautiful clouds that degrade ozone layer appear in sky
These strange clouds only form at very high altitudes and at extremely low temperatures, appearing as beautiful wispy iridescent ribbons from below.
Scientists Find Ozone Hole in Tropics Much Bigger Than in Antarctica
A scientist found the huge hole by examining climate and temperature data in the ozone above tropical regions - to the shock of the rest of the scientific community.
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Enormous Hole in the Ozone Appears Above Arctic in Rare Phenomenon
The hole stretches from Hudson Bay all the way to Russia's Arctic islands.
Ozone Destroying Substances Caused Half of Arctic Warming from 1955 to 2005
Findings come over 30 years after the Montreal Protocol was introduced.
Production of Banned Chemicals Could Delay Ozone Hole Recovery By 18 Years
If emissions of banned gases continue at their current rate, recovery could be delayed by up to 18 years in a worst-case scenario.
Trump Energy Policies Could Affect Air Quality in 2050, Say Scientists
"The result is the United States gets dirtier air and we get to pay more money for the dirty energy being provided," Robert Ukeiley of the Center for Biological Diversity told Newsweek.
The Antarctic Ozone Hole This Year Could Be The Smallest Since 1988
Scientists at the EU's Copernicus Atmosphere Monitoring Service who track the size of the ozone hole in the Antarctic reported that it is expected to be atypically small this year.
Los Angeles Ranked Highest in U.S. for Deaths Linked to Air Pollution
Scientists warned efforts to tackle air pollution that have saved the lives of Americans are under threat from Trump administration policies.
Banned Ozone-Eating Emissions May Come From China
Has one of the "greatest environmental crime mysteries" in history been solved?
Northeast States Under Air Quality Alert
A Code Orange alert signals higher concentrations of air pollution—and potentially dangerous conditions.
Ozone Thinning May Be More Harmful Than Ever
The ozone is depleting over the most populous areas of the planet.
Shocking Level of Pollutant Rises From Farmed Soils
Between 25 and 41 percent of nitrogen oxide is emanating from agricultural lands in California.
NASA: Ozone Layer's Recovery Is Due to Chemical Ban
Chlorine levels specifically have been declining since at least 2005.
24,000 Deaths From Low Air Quality Could Be Prevented
The U.S. benefits from other countries working to curb greenhouse gases and improve air quality.
Ozone Hole At Its Smallest Since 1988
The hole was still two and half times the size of the U.S.
Richard Epstein: Trump's Right to Dump the Paris Accord
There's no gain in the U.S. participating in a treaty that combines bad science with bad economics.
Will EPA Chief Pruitt Keep Our Air and Water Clean?
Over 126 million Americans—about 40 percent—live in areas that fail to meet environmental standards.
Six Ways The Universe Could Kill Us All
Asteroids, solar flares and gamma rays... The universe is not short of ways to end life on Earth.
Scientists Develop Aerosol to Repair Ozone Layer
"Injecting" aerosol into the stratosphere could cool the planet and repair the ozone layer.
