The Polar Vortex Is Spinning Backwards

This month’s backward vortex has *not* caused an outbreak of winter weather. Instead, it has produced a very strong increase in polar ozone.

Hunga Tonga-Hunga eruption sent enough water vapor into the stratosphere to cause a rapid change in chemistry

The tremendous amount of water vapor that this volcano sent to the stratosphere led to a rapid production of sulfate aerosol particles that we were able to observe within days…

NASA-funded Network Tracks the Recent Rise and Fall of Ozone Depleting Pollutants

Due in large part to effective monitoring, and subsequent reaction to the 2018 report, data and analysis in these two papers (published in February 2021) suggest that both the renewed…

China’s war on particulate air pollution is causing more severe ozone pollution

From Eurekalert! Public Release: 2-Jan-2019 PM 2.5 pollution is falling but ground-level ozone pollution is on the rise Harvard John A. Paulson School of Engineering and Applied Sciences In early…

New study finds that a Carrington class solar event could cause global cooling of more than 3C

A paper recently published in Atmospheric Chemistry and Physics finds that “a solar proton event, if it took place in the near future with an intensity similar to that ascribed…