Tag: Ozone

A Class of Ozone-Depleting Chemicals is Declining, Thanks to the Montreal Protocol

7/1/2024 - By research.noaa.gov. New research by a team including current and former NOAA-affiliated scientists has shown that atmospheric concentrations of a class of ozone-depleting chemicals used as refrigerants, foam blowing agents and solvents peaked in 2021 and are now beginning to decline as nations comply with restrictions called for by the… SEE MORE

2023 Ozone Hole Ranks 16th Largest, NASA and NOAA Researchers Find

11/1/2023 - By nasa.gov. The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest single-day ozone hole since 1979. During the… SEE MORE

DLR German Aerospace Center, CC BY 2.0 , 512px-Earth_from_space_7628218100 via Wikimedia Commons

4 facts you might not know about ozone and the Montreal Protocol

1/27/2023 - By www.noaa.gov January 10, 2023—The Montreal Protocol was adopted 35 years ago and remains a landmark environmental agreement, saving millions of people from cancer and contributing significantly to the protection of Earth’s climate system. Formally known as the “Montreal Protocol on Substances That Deplete the Ozone Layer,” this important U.N.… SEE MORE

Badseed, Public domain, via Wikimedia Commons

Progress Seen in Repairing the Ozone Layer

8/30/2022 - By NOAA. An annual analysis of air samples collected at remote sites around the globe that is tracking a continued decline in the atmospheric concentration of ozone-depleting substances shows the threat to the ozone layer receding below a significant milestone in 2022, NOAA scientists have announced. In early 2022, the… SEE MORE

https://www.cbsnews.com/news/arctic-ozone-hole-largest-closed/

The Largest Arctic Ozone Hole Ever Recorded is Now Closed

5/1/2020 - By Sophie Lewis. Just as suddenly as it first formed, a record-breaking ozone hole has healed. The largest ozone hole to ever open up over the Arctic is now closed, after first opening up earlier this spring. Scientists monitoring the "unprecedented" hole at the Copernicus Atmospheric Monitoring Service (CAMS) announced the closure last… SEE MORE