Climate
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Ecosystems
Cool Jobs: Bringing caves’ dark secrets to light
These three cave researchers study caves to learn more about climate, geology and organisms that can survive some of Earth’s most hostile environments.
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Environment
Trees can make summer ozone levels much worse
The greenery can release chemicals into the air that react with combustion pollutants to make ozone. And trees release more of those chemicals where it gets really hot, a new study finds.
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Earth
Ancient Arctic ‘gas’ melt triggered enormous seafloor explosions
Methane explosions 12,000 years ago left huge craters in bedrock on the Arctic seafloor. Scientists worry more could be on the way today as Earth’s ice sheets melt.
By Beth Geiger -
Animals
Analyze This: A massive annual insect migration
A study of seasonal insect migration gave some surprising results.
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Climate
Cool Jobs: Head in the clouds
What do a microbiologist, an atmospheric scientist and a materials engineer have in common? They’ve all got their heads in the clouds.
By Beth Geiger -
Climate
Sea ice around Antarctica shrinks to record low
Just two years after reaching a record high, the Antarctic sea ice extent has reached a new low.
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Oceans
Climate change could stall Atlantic ocean current
Rising carbon dioxide concentrations in Earth’s atmosphere could disrupt the Atlantic Ocean current after all, a new analysis finds.
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Climate
Earth breaks heat record for third year straight
Climate change and heat from a strong El Niño played roles in making 2016 the hottest year on record.
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Archaeology
Cool Jobs: Hunting surprises in thinning glaciers
Meet three scientists who are tracking the meltdown of Earth’s glaciers. They share their adventures, predictions and unexpected discoveries.
By Beth Geiger -
Health & Medicine
Extreme survival: Managing the deadly cold
Extreme cold can cause frostbite, hypothermia — even death. Knowing the risks can help keep you safe even when it’s freezing cold.
By Susan Moran -
Health & Medicine
Seven tips for staying safe in frigid weather
Maps? Check. Water? Check. Insulating clothes? Check. Here’s the checklist to consult before planning to trek out in the frigid cold.
By Susan Moran -
Oceans
Massive ice shelf is poised to break off of Antarctica
A fast-growing crack in Antarctica’s Larsen C ice shelf could soon release a truly huge hunk of ice into the ocean.