Environment
Laundry tweaks can help clothes last longer and pollute less
Clothes washed in cooler water and for less time shed less dye and fewer fibers, a new study finds. That’s better for clothes — and the environment.
HS-ESS3-2
Evaluate competing design solutions for developing, managing, and utilizing energy and mineral resources based on cost-benefit ratios.
More Stories in HS-ESS3-2
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EarthHelium discovery blows away shortage worries
Fears that the world may soon run out of helium have been set aside for now by the finding of a huge reservoir of the gas in East Africa.
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TechConcrete science
Teen researchers are exploring ways to strengthen this building material, use it for safety purposes and use its discarded rubble.
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Computing‘Couch potatoes’ tend to be TV-energy hogs
Many government programs urge people to save electricity by using more efficient TVs. Here’s why these programs should target “couch potatoes.”
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Health & MedicineCool Jobs: Finding foods for the future
What's for dinner... tomorrow? Scientists are developing new foods to meet the demands of the growing population in a changing world.
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ChemistryChemistry: Green and clean
“Green” means environmentally friendly and sustainable. Green chemistry creates products and processes that are safer and cleaner — from the start.
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AgricultureYour food choices affect Earth’s climate
Producing food can put a lot of climate-warming pollutants into the atmosphere. But some foods, especially meats, contribute more than others.
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TechThe road less worn
Two teens have found a new use for old tires. By grinding them up and adding them to asphalt, the old rubber can create stronger, longer-lived roads. And the bonus: The process recycles tires that might otherwise have been burned, creating pollution.