Earth
Helium 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.
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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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.
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EnvironmentChina exports pollution alongside goods
Many companies have moved the plants that make their products to developing countries, such as China. But the pollution linked to making those products can travel around the world.
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EarthMining metals amidst seafloor animals
Miners may need to get their feet — and everything else — wet as they carefully seek out loads of copper and other valuable natural resources.
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