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Scientists ventured inside a rare 'fire cloud.' Here's what they found.
Environment
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How teen Greta Thunberg went from solitary climate change protester to icon
World
How teen Greta Thunberg went from solitary climate change protester to icon
World
Johannes Eisele / AFP - Getty Images file
It's official: July was hottest month on record
Environment
It's official: July was hottest month on record
Environment
This bug is contributing to climate change. And it's got lots of company.
Environment
Puerto Rico's coffee farmers work to rebuild what Hurricane Maria destroyed
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Why the Hawaii telescope protests aren't going anywhere
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'No flying' movement takes off in environmentally conscious Sweden
World
Climate change could trigger a global food crisis, new U.N. report says
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How Michael Phelps' diet might explain why mercury levels are rising in tuna
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The challenges of studying endangered species
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Wasteland: Zero waste may be the wave of the future, but it's trickier than you think
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Multiple reports of dogs dying after coming into contact with blue-green algae
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Wasteland: Why recycling isn't the answer to our trash problem
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Miners, keepers: Could bees be the answer to West Virginia’s coal slump?
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Ken Bohn / San Diego Zoo via AP
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Cloning giant redwoods could help combat climate change
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Airplane contrails add to climate change, and the problem is about to get worse
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AOC, Warren push for environmentally safer military cleanup in Vieques, Puerto Rico
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Climate scientists drive stake through heart of skeptics' argument
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July is on track to become Earth's hottest month on record, climate scientists say
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July is on track to become Earth's hottest month on record, climate scientists say
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Eco-friendly biofuels made from food waste could cut 'flight shame' among air travelers
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'Meth-gators': Police warn flushing drugs could create hyper-aggressive alligators
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Red tide is occurring in coastal waters all over the world. But it's not a new phenomenon.
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Scientists discover the world's biggest seaweed patch. They say it could be the 'new normal.'
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Red tide is occurring in coastal waters all over the world. But it's not a new phenomenon.
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Scientists discover the world's biggest seaweed patch. They say it could be the 'new normal.'
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Twitter helps reveal deadly toll ocean plastic takes on sharks and rays
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Toxic algae blooms force Mississippi to close all mainland beaches
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