Environment
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TechEggshells help hatch a new idea for packaging
Why just crack an egg? Make the shell into itty bitty bits and use them to build a more biodegradable plastic. New research shows how.
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EnvironmentEnormous natural-gas leak polluted L.A. air
A massive methane release from a single leaky underground well spewed as much of the greenhouse gas into the air as a mid-sized European country does in an entire year.
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EnvironmentGulf oil spills could destroy shipwrecks faster
In the Gulf of Mexico, leftover crude oil from the Deepwater Horizon spill may be speeding the corrosion of old shipwrecks.
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AnimalsWhat a drag! Fishing gear’s effects on whales
Many whales become entangled in the gear that fishing boats use to catch fish and shellfish. Such debris can have dire impacts on the big mammals.
By Ilima Loomis -
OceansArctic ice travels fast, carrying pollution
Climate change is melting old sea ice in the Arctic. Now, younger, thinner ice is migrating far and fast, taking pollutants with it.
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EarthRocks hold clues to ancient die-offs
Rocks that formed during ancient mass-extinction show that the oceans back then had become very warm. That was the last time Earth spewed carbon dioxide into its atmosphere at a rate similar to what is happening today.
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AgricultureBuilding better, safer soils
Engineering safer soils for urban growers can reduce the risk of lead exposure and let low-income families enjoy more fresh fruits and vegetables.
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Science & SocietyThe most important stories of 2015
From Pluto to gene editing, the year saw a number of notable research discoveries, advances and insights.
By Janet Raloff -
EnvironmentWater: Getting the salt out
A new water-cleansing technology passes electricity through a flow of salty water. This will generate a zone of fresh water that can then be collected.
By Sid Perkins -
TechEngineers consider liquid salt to generate power
A new type of power plant, a molten salt reactor, might provide electricity in a cleaner and safer way than current nuclear technology.
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ChemistrySome 3-D printing can leave toxic taint
The ”ink” inside some 3-D printers can leave toxic traces. In tests, these chemicals harmed baby fish. But lighting could render the parts safer.
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GeneticsTaking attendance with eDNA
Environmental DNA, or eDNA, tells biologists what species are in an area — even when they’re out of sight.