Reducing aerosol pollution without cutting carbon dioxide could make the planet hotter: Solving one environmental problem could create another. Retrieved November 11, from www. Now, fossils of ocean algae reveal that a weakening in But new research ScienceDaily shares links with sites in the TrendMD network and earns revenue from third-party advertisers, where indicated.
Print Email Share. Boy or Girl? You Need a Chickadee Brain. Living Well. And it turns out that aerosols have a far bigger role to play in climate change and global warming than originally thought. Amber Jenkins spoke to researcher Dr.
Nadine Unger to find out more. Aerosols are tiny particles in the air that can be produced when we burn different types of fossil fuels — coal, petroleum, wood and biofuels — in different ways. A significant man-made source of aerosols is pollution from cars and factories.
But aerosols can also be produced naturally, for example, through being given off from trees or burning vegetation. But it was used a lot by the media during the s and s to refer to the spray cans that released chlorofluorocarbons CFCs into the air, which damage the ozone layer and created the ozone hole. We reviewed these effects in a recent paper. This is a highly challenging modern-day Earth system problem that requires collaboration across the sciences of atmospheric science, chemistry, biology, meteorology, etc.
All aerosol whether from human activities or nature will also respond to anticipated changes in atmospheric chemistry. In Leeds we are developing the necessary Earth System models and studying the multiple interactions between aerosol processes and other parts of the Earth system. How do changes in aerosol affect global weather patterns? Research shows that long-term trends in drought such as in the Sahel may be induced by the spatially patchy cooling of the Earth's surface caused by aerosols.
The enormous aerosol concentrations over parts of Asia probably also affect the Monsoon circulation, impacting the rainfall that sustains over a billion people. As weimplement policies to reduce aerosol pollutants, how will this affect global weather? How is local extreme weather affected by aerosol? Extensive research, including at Leeds, shows that extreme precipitation events e.
However, humans add lots of aerosols to the atmosphere by burning fossil fuels such as coal, oil, and gas. Aerosols are a part of air pollution and are dangerous to human health. When we breathe in these tiny particles, they can damage lung tissue and lead to lung diseases.
Aerosols can also limit visibility, causing haze in many parts of the world. Aerosols in the atmosphere can change the amount of solar energy reflected away from Earth. Not all aerosols react the same when hit with sunlight. Sea salt particles reflect sunlight back out into space.
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