Materials Science
Scientists Say: Aerosol
Aerosols are tiny bits of solids or drops of liquids suspended in gas. Aerosols include mist, fog and soot, as well as pollution from fossil fuels.
Environment
More Stories in Environment
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EnvironmentWarming cities may see more rain — and frequent flooding
Scientists are seeking to understand why and how to mop up excess precipitation.
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EnvironmentExplainer: Urban heat islands and how to cool them
Cities transform landscapes covered in plants to ones covered in heat-absorbing asphalt and concrete. But ways exist to cool these urban heat islands.
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EnvironmentLet’s learn about plastic pollution
The world is cluttered with plastic waste. All that junk kills animals far and wide.
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EarthLet’s learn about Antarctica
This continent is dry, windy and very cold — and home to penguins, ice and a lot of scientific research.
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Environment‘Zombie’ wildfires can reemerge after wintering underground
Climate change may make these not-quite-dead blazes more common. Scientists are learning to predict where a zombie might emerge.
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ClimateU.S. records reveal the last 30 years were the hottest on record
New ‘climate normals’ show that average temperatures increased notably just since 1990.
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Earth‘Tree farts’ make up about a fifth of greenhouse gases from ghost forests
Heat-trapping gases from dead trees play an important role in the environmental impact of “ghost” forests.
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EnvironmentPond scum can release a paralyzing pollutant into the air
New study finds blooms of blue-green algae can seed the air with a poisonous pollutant.
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Health & MedicineWarning: Wildfires might make you itch
Western wildfires are on the rise due to climate change and land use. Now a study adds eczema to the list of health risks that smoke might trigger.