A catastrophic drop in atmospheric ozone levels around the tropics is likely to have contributed to a bottleneck in the human population around 60 to 100,000 years ago, an international research team has suggested. The ozone ...
Earth Sciences
Jun 1, 2021
0
906
Some microbes on Earth could temporarily survive on the surface of Mars, finds a new study by NASA and German Aerospace Center scientists. The researchers tested the endurance of microorganisms to Martian conditions by launching ...
Astrobiology
Feb 22, 2021
5
300
An international team of researchers has located the source of recently discovered ozone damaging HCFCs in the atmosphere. In their paper published in Proceedings of the National Academy of Sciences, the group describes using ...
Economists frequently try to estimate the societal cost of releasing carbon dioxide into the atmosphere, but few of their projections go beyond the year 2100—far short of the millennia it takes for the climate changes from ...
Environment
Sep 10, 2020
34
2138
A new paper, co-authored by a University of Sussex scientist, has revealed major holes in an international treaty designed to help repair the ozone layer, putting human health at risk and increasing the speed of climate change.
Environment
Aug 26, 2020
1
216
On Sept. 16, 1987, policymakers and scientists from around the world gathered at the International Civil Aviation Organization's headquarters in Montreal, preparing to take action on the day's most urgent topic: Depletion ...
Earth Sciences
Apr 16, 2020
0
75
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 in the stratosphere, ...
Earth Sciences
Apr 7, 2020
22
762
The Montreal Protocol, an international agreement signed in 1987 to stop chlorofluorocarbons (CFCs) destroying the ozone layer, now appears to be the first international treaty to successfully slow the rate of global warming.
Environment
Dec 6, 2019
41
4016
If China takes strong measures to reduce its ozone pollution now, it could save hundreds of thousands of lives in the long run, according to a new study led by researchers at Columbia University's Lamont-Doherty Earth Observatory.
Environment
Jul 16, 2019
0
106
Since the Antarctic ozone hole was detected in 1985, depletion of the ozone layer—the "big umbrella" that protects all life on Earth—has raised considerable concern. The efforts of international communities led to the ...
Environment
Jul 15, 2019
1
67
