Earth
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Planetary Science
Readers wanted to know about asteroids, lithium batteries and more
Readers had questions and comments about asteroids, lithium batteries, and pyroclastic flows.
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Oceans
The largest seaweed bloom ever detected spanned the Atlantic in 2018
Nutrient-rich water from the Amazon River may be helping massive seaweed mats to flourish each summer in the Atlantic Ocean.
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Climate
Europe’s latest heat wave has been linked to climate change
Global warming made the June heat wave at least five times more likely to happen.
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Climate
CO2 emissions are on track to take us beyond 1.5 degrees of global warming
Current and planned infrastructure will exceed the level of emissions that would keep global warming to 1.5 degrees Celsius, a new analysis finds.
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Climate
Is climate change causing Europe’s intense heat? A scientist weighs in
Science News talks with climate scientist Karsten Haustein about attributing extreme heat events in Europe and South Asia to climate change.
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Animals
U.S. honeybees had the worst winter die-off in more than a decade
Colonies suffered from parasitic, disease-spreading Varroa mites. Floods and fire didn’t help.
By Susan Milius -
Oceans
The world’s fisheries are incredibly intertwined, thanks to baby fish
A computer simulation reveals how one nation's management of its fish spawning grounds could significantly help or hurt another country's catch.
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Climate
Cold War–era spy satellite images show Himalayan glaciers are melting fast
Declassified spy satellite photographs reveal that glacier melt in the Himalayas has sped up dramatically in the last two decades.
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Chemistry
How seafood shells could help solve the plastic waste problem
Chitin and chitosan from crustacean shells could put a dent in the world’s plastic waste problem.
By Carmen Drahl -
Earth
Is a long-dormant Russian volcano waking up? It’s complicated
Scientists debate how to interpret seismic activity near Bolshaya Udina on the remote Kamchatka Peninsula.
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Ecosystems
Many of the world’s rivers are flush with dangerous levels of antibiotics
Antibiotic pollution can fuel drug resistance in microbes. A global survey of rivers finds unsafe levels of antibiotics in 16 percent of sites.
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Environment
Some Canadian lakes still store DDT in their mud
Yesterday’s DDT pollution crisis is still today’s problem in some of Canada’s lakes.