The number of satellites is exploding, and we still don’t have a fully safe way to dispose of them.
Articles on Aerosols in the stratosphere
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A lack of human activity in the Southern Ocean is just one reason why the air is so clean. Clouds and rain play a vital role in scrubbing the atmosphere, removing natural airborne particles too.
On top of rising greenhouse gas emissions, aerosol pollution which would normally cool Earth has fallen.
Fountains of lava from Hawaii’s Kilauea volcano are dramatic, but the most deadly impacts of volcanic eruptions are toxic gases and ash and mud flows.
Earth’s ozone layer shields us from harmful ultraviolet radiation. Nations have been working to reduce ozone-depleting chemicals since the 1980s, but recent studies show that there is still work to do.
Solar radiation management might be able to reduce some of the risks of global warming while countries get their emissions under control.
Top contributors
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Fellow, University of Bristol
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Associate Professor of Geosciences; Director for the Boise State Hazard and Climate Resilience Institute, Boise State University
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Professor, Addis Ababa University
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PhD student, Monash University
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Senior Lecturer in Climate Science, The University of Melbourne
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Professor of Physical Climate Change; Director of the Priestley Centre for Climate Futures, University of Leeds
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Professor in Cloud Microphysics, Monash University
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Associate Professor in Climate Science, Imperial College London
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Professor of Chemistry and Atmospheric Science, Colorado State University
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Professor of Applied Environmental Science, University of Southampton
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Associate Professor of Astronautics, University of Southampton