Climate Technology
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How safe is our drinking water?
Poisoning the enemy is a long-standing military strategy.
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![British PM David Cameron]()
![British PM David Cameron]()
Will the U.K. follow the U.S. on a fracking binge?
British Prime Minister David Cameron seems desperate to mimic America's natural-gas boom, but plenty of hurdles stand in his way.
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![DOT-111 rail cars]()
![DOT-111 rail cars]()
Safety rules to prevent oil-train explosions delayed
Freight train operators won't be required to improve the safety of their tankers until next year, but they say they'll take voluntary steps in the meantime.
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![smokestacks]()
![smokestacks]()
U.S. CO2 emissions are on the rise, and coal-loving members of Congress want to keep it that way
After years of decline, U.S. emissions are going back up. A bill to block EPA power-plant rules would help keep them up.
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Flood money: How Congress is botching the effort to climate-proof insurance
Lawmakers are retreating on basic reforms when they should be looking to the future, and creating even more dramatic changes.
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![Christiana Figueres]()
![Christiana Figueres]()
U.N. climate chief calls for fossil-fuel divestment
Just as importantly, Christiana Figueres says big institutional investors should triple the money they're putting into clean energy.
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![Boating on Bristol Bay]()
![Boating on Bristol Bay]()
Pebble Mine near Alaska’s Bristol Bay could be environmentally devastating, EPA says
A huge proposed gold and copper mine would pose major risks to the area's wildlife, fishing industry, and Native cultures, a new report finds.
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Scientists are studying bees by turning them into cyborgs
They're going to attach tiny little sensors (less than 0.1 inches wide) to the bees, let them fly around, and track how they move.
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Why exploding trains are the new Keystone XL
With pipeline projects stalling, more crude is riding the rails. Also, spilling. And blowing up. That's making the Oil Express a target for protest.
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![solar sun power plug]()
![solar sun power plug]()
Ask Umbra: Why must we “store” renewable energy? Can’t we just use it?
A reader wonders why it’s so hard to work wind and solar power into the grid. Umbra gets a real charge out of the question.
