Climate
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ClimateWhy won’t this debate about an ancient cold snap die?
Critics are still unconvinced that a comet caused a mysterious cold snap 12,800 years ago.
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ClimateAntarctica has lost about 3 trillion metric tons of ice since 1992
Antarctica’s rate of ice loss has sped up since 1992 — mostly in the last five years, raising global sea level by almost 8 millimeters on average.
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ClimateTropical cyclones have slowed over the last 70 years
Tropical cyclones are moving 10 percent slower, on average, than they did in the mid-20th century, potentially making them more dangerous.
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EnvironmentA big analysis of environmental data strengthens the case for plant-based diets
A new study calculates the bonus for the planet of choosing more foods from plants.
By Susan Milius -
ClimateThe first Americans could have taken a coastal route into the New World
Alaskan glaciers retreated in time for ancient coastal entries of the first Americans.
By Bruce Bower -
PaleontologyThe Chicxulub asteroid impact might have set off 100,000 years of global warming
About 66 million years ago, the Chicxulub asteroid impact set off 100,000 years of global warming, an analysis of oxygen in fish fossils suggests.
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ClimateAs CO2 increases, rice loses B vitamins and other nutrients
Field experiments add vitamins to list of nutrients at risk from a changing atmosphere.
By Susan Milius -
EarthKeeping global warming to 1.5 degrees C helps most species hold their ground
Holding global warming to 1.5 degrees Celsius by 2100 could help protect tens of thousands of insect, plant and vertebrate species.
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AnimalsThese caterpillars march. They fluff. They scare London.
Oak processionary moths have invaded England and threatened the pleasure of spring breezes.
By Susan Milius and Aimee Cunningham -
ClimateGlobetrotting tourists are leaving a giant carbon footprint on the Earth
Globetrotters are responsible for about 8 percent of the world’s greenhouse gas emissions.
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ClimateBull sharks and bottlenose dolphins are moving north as the ocean warms
Rising temperatures are making ocean waters farther north more hospitable for a variety of marine species.
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ClimateHeat waves are roasting reefs, but some corals may be resilient
The latest research on coral reefs clarifies the devastation of heat waves and looks at how coral might be able to adapt to warming waters.
By Dan Garisto