Earth's Systems
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EarthCarbon dioxide could explain how geysers spout
A new study overturns 150 years of thinking about Yellowstone’s geysers. Carbon dioxide, not just hot water, may be driving those spectacular eruptions.
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ChemistryParticles in air help fatten clouds’ water droplets
Making their own clouds has shown scientists how the fattest water droplets form. Understanding this could lead to better forecasts of climate change.
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EarthQuake risk in some central states rivals California’s
Risks of tremors in some central U.S. states are as high as those in quake-prone California. The reason: waste fluids from oil and gas drilling.
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ChemistrySmash hit: Making ‘diamond’ that’s harder than diamonds
Scientists had suspected extreme meteorite impacts might turn graphite into an unusual type of diamond. Now they’ve seen it happen — in under a nanosecond.
By Beth Geiger -
EarthBubbles may have sheltered Earth’s early life
For Earth’s earliest inhabitants, a bubble on the beach would have been the next best thing to a safety blanket.
By Meghan Rosen -
ClimateArctic ice travels fast, carrying pollution
Climate change is melting old sea ice in the Arctic. Now, younger, thinner ice is migrating far and fast, taking pollutants with it.
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ChemistryMystery ‘earmuffs’ sit deep inside Earth
Two vast blobs in Earth’s lower mantle could result from a “trainwreck” of ancient colliding tectonic plates.
By Beth Geiger -
ClimateConcerns about Earth’s fever
Burning fossil fuels is causing the planet to heat up, causing weather patterns to change, sea levels to rise and diseases to spread.
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ClimateExplainer: How scientists know Earth is warming
Scientists can calculate global temperatures, both present and past. Their findings show that the planet is rapidly heating up.
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ClimateClues to the Great Dying
Millions of years ago, nearly all life on Earth vanished. Scientists are now starting to figure out what happened.
By Beth Geiger -
ClimatePicture This: Biggest hurricane in the West
The hurricane that’s storming into western Mexico has had higher sustained winds than any seen in the Western Hemisphere. It’s also got the lowest atmospheric pressure, making it a monster storm.
By Janet Raloff -
EarthExplainer: What is a tsunami?
Earthquakes and landslides can create huge waves that travel across oceans.