Earth
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EarthExplainer: CO2 and other greenhouse gases
Carbon dioxide is just one of several chemicals that contribute to the greenhouse effect. Nitrous oxide, methane and CFCs are other big contributors.
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ClimateAnalyze This: How hot will it get?
Temperatures are rising because of human-caused climate change. But some places will get hot faster than others.
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EcosystemsNew tools aim to better predict blooms of toxic algae
Scientists across the United States are developing programs that can predict when blooms of toxic algal may occur.
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ClimateClimate change intensified Hurricane Florence, study finds
A new study finds that a warmer climate fattened up Florence. The result: Once it made landfall it would now drop lots more rain and over a broader region.
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EarthAir pollution is shortening lives worldwide
Worldwide, tiny particles of air pollution are making the average person’s life a year shorter.
By Katy Daigle -
ClimateHawaii’s record 2018 rains may foretell wetter times ahead
Another rainfall record was set in Hawaii. But how does this stack up to other rain records across the United States?
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ChemistryRare blue diamonds form deep, deep, deep inside Earth
The recipe for rare blue diamonds may include boron, seawater and massive rock collisions.
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PhysicsAnalyze This: Can you outrun these geological disasters?
There's one geological disaster you probably can outrun, and a few others that are iffy.
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AnimalsNine big stories you may have missed this summer
We hope you enjoyed time off from school this summer. But you may have missed some scientific developments, from mega-eruptions to Martian lakes.
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ClimateScientists Say: Climate
Climate is the atmospheric conditions that are typical to a general area over a long period of time.
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AgricultureTarzan the robot was actually inspired by a sloth
‘Tarzan’ the robot saves energy by swinging. Someday, it could help with farm work by moving along wires strung across fields of crops.
By Ilima Loomis -
EarthA ‘ghost’ gene leaves sea mammals vulnerable to some toxic chemicals
Manatees, dolphins and other warm-blooded marine animals can't break down some common pesticides. The newfound reason: Long ago, their genes lost the ability to do so.