“Actions taken under the Montreal Protocol continued to decrease atmospheric abundances of controlled ozone-depleting substances (ODSs) and advance the recovery of the stratospheric ozone layer.

In a paper published in National Science Review, an international team of scientists discovered a universal N2O emission ...

In the past decade, researchers found that the amount of ozone-depleting chemicals in both the lower and upper atmosphere reached a peak around the year 2000 and has been slowly declining. From the ...

More information: Megan J. Lickley et al, The return to 1980 stratospheric halogen levels: a moving target in ozone assessments from 2006 to 2022, Atmospheric Chemistry and Physics (2024). DOI: 10 ...

“We celebrate 35 years of the Montreal Protocol’s success in protecting the stratospheric ozone layer against synthetic chemicals that also cause climate heating,” said Secretary-General ...

Modelled changes in stratospheric ozone concentration are shown, expressed as a percentage of 1980 values. Projected ozone varies depending on which Intergovernmental Panel on Climate Change (IPCC ...

Now in Geophysical Research Letters, Randel and colleagues report on coherent fluctuations in ozone concentrations and temperature in the tropical lower stratosphere 1 that are related to the near ...

With toxic smog choking cities worldwide and 99% of the population breathing unsafe air, 2025 must be the year for decisive ...

Sep. 12, 2024 — Ozone gas is reducing the growth of tropical forests -- leaving an estimated 290 million tons of carbon uncaptured each year, new research ... Scientists Find a Human ...

Scientists are also concerned about the impact the cooling will have on the ozone layer, located in the lower stratosphere. The most intense ozone destruction occurs in "polar stratospheric clouds ...

While there, he worked on a variety of international environmental issues, including environmental reform of World Bank and regional development banks, the “greenhouse” effect, Soviet and eastern ...