Researchers long ago predicted that the 1987 Montreal Protocol, banning ozone-depleting gases, would reverse a worrisome trend in Southern Hemisphere winds. A new study shows they were right.
As we confront the COVID-19 crisis, can we learn anything that could help us as a country deal with another crisis that is slowly but inexorably coming down the pike—climate change?
Columbia researchers are measuring severe drops in pollutants at the ground level, but warn that the benefits will be short-lived unless we take away some longer-term lessons.
The movement of Arctic sea ice is expected to significantly increase this century, raising the risk of more widely transporting pollutants like microplastics and oil.
While there is a growing body of research showing how the loss of Arctic sea ice affects other parts of the planet, this study is the first to also consider the long-range effect of Antarctic melt.