First lockdown's effect on air pollution was overstated, our study reveals

Exaggerating how much lockdown improved air quality could allow us to underestimate the scale of the air pollution problem.

William Bloss, Professor of Atmospheric Science, University of Birmingham • conversation
Jan. 13, 2021 ~7 min

covid-19 pandemic air-pollution transport-emissions lockdown nitrogen-dioxide pm-25 air-quality ozone

Prehistoric climate change damaged the ozone layer and led to a mass extinction

New research on the Late Devonian extinction suggests the ozone layer could be naturally depleted as the temperature rises.

John Marshall, Professor of Earth Science, University of Southampton • conversation
June 1, 2020 ~7 min

geology climate-change palaeontology mass-extinction ozone-layer ozone ozone-depletion devonian-period