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Are We in the Midst of a Sixth Mass Extinction?
Nearly 20,000 species of animals and plants around the globe are considered high risks for extinction in the wild....
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Geoengineering Could Make Sky White Instead of Blue
Some scientists advocate pumping aerosols into the atmosphere to counter global warming by reflecting solar energy away. But according...
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Greece, the Global Economy, and Big History
Watching the sunset from the cliffs of the Santorini caldera attracts tourists from all over the world, I recently...
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Small-Scale Fuel Cell Designed for Residential Use
Individual homes could soon be powered with their own solid oxide fuel cell systems, thanks to a breakthrough in...
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Climate Change: Arctic Passes 400 Parts Per Million Milestone
The world’s air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming...
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Can Self-Interest Drive Sustainable Energy for All?
A bold plan to bring every person on Earth sustainable energy within 18 years will face its first test...
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Smog Threatens World’s Oldest Trees
The Sequoia National Park forest contains the biggest and among the oldest living things on earth - the giant...
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EPA Seeks to Ease Rules on Muddy Runoff From Logging Roads
The Obama administration wants to change the rules applying to stormwater running off logging roads, blunting a landmark court...
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Can Fungi Clean Up a Superfund Site?
Between the New York City boroughs of Brooklyn and Queens is a broad creek tainted by 150 years of...
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Fracking Boom Spurs Environmental Audit
As hydraulic fracturing unlocks new gas reserves, researchers struggle to understand its health implications.
