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.
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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.
Principais colaboradores
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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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Fellow, University of Bristol
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Professor, Addis Ababa University
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Professor of Chemistry and Atmospheric Science, Colorado State University
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Professor in Cloud Microphysics, Monash 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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Senior Lecturer in Climate Science, Imperial College London
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Professor of Physical Climate Change; Director of the Priestley International Centre for Climate, University of Leeds
