National Oceanic and
Atmospheric Administration
United States Department of Commerce


New PMEL Science at Work Video: How tiny particles affect air quality and climate

Aerosols are fine particles that are produced by waves breaking at the ocean surface (sea spray), phytoplankton (sulfate aerosol), sandstorms (dust), and combustion (burning of fossil fuels and wildfires). These microscopic particles can impact climate directly by absorbing or scattering incoming solar radiation and indirectly by affecting cloud properties such as extent, lifetime, and reflectivity. Aerosols also affect air quality by reducing visibility and, when inhaled, can affect our health.


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