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The largest city on the Mediterranean Sea sits on giant flood-battling rainfall tanks, patrolled by drones to see what's going on in the sewers.
The famous Paris landmark has been fitted with two new wind turbines that generate enough electricity to power the commercial areas of its first floor.
In 2007, a tornado flattened Greensburg, Kan. Now it's on a path to financial stability thanks to a city-wide green rebuilding effort. CNET Road Trip 2014 looked at the wreckage and the recovery.
Students at UC Riverside have created a cheap coating that can go on ordinary clay roofing tiles to bust smog.
BASE jumpers, snorkelers, and skate punks rejoice: The new models bring smaller size, better battery life, new video modes, and faster Wi-Fi.
A UK project is trying to create a method of sustainable, disaster-proof, off-the-grid living for thousands around the globe.
The new Target Field claims to be first sports venue to use purified rain for upkeep and irrigation, asserting that it will reduce ball club's water consumption by 50 percent.
Are you making best use of the Social Hub on your Samsung Galaxy S2? Follow this video guide to become a social networking god.
General Motors' Lansing Delta Township Assembly Plant has received an Energy Star certification for energy efficiency.
University of Maryland takes the top prize in this year's Solar Decathlon with a net zero-energy house. Energy Secretary Steven Chu, on hand to congratulate the winners, also addresses recent criticism of clean-energy investments.