Climate
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		ClimateU.S. will withdraw from climate pact, Trump announces
President Trump announced June 1 that the United States will withdraw from the Paris climate accord.
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		Particle PhysicsReaders puzzled by proton’s properties
Readers sent feedback on under-ice greenhouses in the Arctic, the Martian atmosphere and more.
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		ClimateHigher temperatures could trigger an uptick in damselfly cannibalism
Experiments in the lab suggest that increases in temperature could indirectly lead to an increase in cannibalistic damselfly nymphs.
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		EarthStunning images reveal glacial landscapes under the oceans
The most detailed atlas of the seafloor ever compiled offers colorful imagery and ghostly glimpses of Earth’s glacial past.
By Beth Geiger - 			
			
		EarthIce particles shaped like lollipops fall from clouds
Small ice particles called ice-lollies, because of their lollipop-like appearance, can form in clouds.
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		AnimalsSea creatures’ sticky ‘mucus houses’ catch ocean carbon really fast
A new deepwater laser tool measures the carbon-filtering power of snot nets created by little-known sea animals called giant larvaceans.
By Susan Milius - 			
			
		EarthCrack in Antarctica’s Larsen C ice shelf forks
An 180-kilometer-long rift in Antarctica’s Larsen C ice shelf has forked into two branches, new satellite observations show.
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		EarthCrack in Antarctica’s Larsen C ice shelf forks
An 180-kilometer-long rift in Antarctica’s Larsen C ice shelf has forked into two branches, new satellite observations show.
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		ClimateRadical idea could restore ice in the Arctic Ocean
Windmill-powered pumps on buoys throughout the Arctic Ocean could help bring back shrinking sea ice, researchers say.
By Sid Perkins - 			
			
		ClimateLakes worldwide feel the heat from climate change
Lakes worldwide are warming with consequences for every part of the food web, from algae, to walleye, to freshwater seals.
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		ClimateOcean acidification may hamper food web’s nitrogen-fixing heroes
A new look at marine Trichodesmium microbes suggests trouble for nitrogen fixation in an acidifying ocean.
By Susan Milius - 			
			
		ClimatePlot twist in methane mystery blames chemistry, not emissions, for recent rise
The recent rise in atmospheric methane concentrations may have been caused by changes in atmospheric chemistry, not increased emissions from human activities, two new studies suggest.