Mass Extinction Event Caused by Erosion of the Ozone Layer
Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth’s plant and freshwater…
Ozone
Unanticipated Consequences of Montreal Protocol: Ozone-Depleting Chemical Alternatives in Our Food and Water
An international environmental agreement to regulate the use of chemicals depleting the ozone layer may have inadvertently allowed higher levels of other harmful chemicals to…
NASA Reports Arctic Ozone Depletion Hit Record Low in March
Ozone levels above the Arctic reached a record low for March, NASA researchers report. An analysis of satellite observations show that ozone levels reached their…
There’s a New Hole in the Ozone Layer – This One’s Over the Arctic
Scientists using data from the Copernicus Sentinel-5P satellite have noticed a strong reduction of ozone concentrations over the Arctic. Unusual atmospheric conditions, including freezing temperatures…
Changes in Southern Hemisphere Winds Stopped by International Ozone Treaty
Study adds to evidence showing effectiveness of Montreal Protocol. Chemicals that deplete Earth’s protective ozone layer have also been triggering changes in Southern Hemisphere atmospheric…
Reducing Man-Made Ozone: A ‘Win-Win’ for Both Human Health and the Planet
Lehigh University scientist Benjamin S. Felzer calls new research showing that cleaning up ozone precursors within energy, industrial and transportation sectors could mitigate climate change,…
Half of Late 20th-Century Arctic Warming Caused by Ozone-Depleting Substances – “It’s a Good-News Story”
Implicated in a Third of Overall Global Warming for the Time Period A scientific paper published in 1985 was the first to report a burgeoning…
Ozone Depletion in the Lower Stratosphere Due to Iodine From Oceans
Air pollution and iodine from the ocean contribute to damage to Earth’s ozone layer. A new paper quantifying small levels of iodine in Earth’s stratosphere…
Antarctic Ozone Hole is the Smallest on Record Since Its Discovery [Video]
Abnormal weather patterns in the upper atmosphere over Antarctica dramatically limited ozone depletion in September and October, resulting in the smallest ozone hole observed since…
Scientists Discover a Hidden Threat to Corn
Like atmospheric methane and carbon dioxide, ground-level ozone is on the rise. But ozone, a noxious chemical byproduct of fossil fuel combustion, has received relatively…
NASA Study Provides First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban
Using measurements from NASA’s Aura satellite, scientists studied chlorine within the Antarctic ozone hole over the last several years, watching as the amount slowly decreased….
Scientists Monitor Positive Signs of Recovery of the Earth’s Stratospheric Ozone Layer
Each year, ozone-depleting compounds in the upper atmosphere destroy the protective ozone layer, and in particular above Antarctica. The ozone layer acts as Earth’s sunscreen…
NASA Scientists Track Ozone Pollution by Monitoring Key Ingredients
New NASA-funded research has devised a way to use satellite measurements to track ozone formation among three different sets of conditions. Ozone pollution near Earth’s…
2017 Ozone Hole is the Smallest Since 1988
This year’s ozone hole was similar in area to the hole in 1988, about 1 million miles smaller than in 2016. Although scientists predict the…
Antarctic Ozone Layer Shows Signs of Healing
New research details the “first fingerprints of healing” of the Antarctic ozone layer. Scientists found that the September ozone hole has shrunk by more than…
2015 Antarctic Ozone Hole Larger Than Recent Years
Scientists from NASA and the National Oceanic and Atmospheric Administration reveal that the 2015 Antarctic ozone hole area was larger and formed later than in…
New NASA Study Shows That Hydrofluorocarbons Contribute to Ozone Depletion
According to new research from NASA, chemical coolants known as hydrofluorocarbons that are found in refrigerators and in home and automobile air conditioners, contribute to…
2014 Antarctic Ozone Hole Comparable to Previous Years
Scientists from NASA and the National Oceanic and Atmospheric Administration reveal that the overall 2014 ozone hole is smaller than the large holes of the…