06 May 2013:
Solar-Powered Airplane Finishes
First Leg of Coast-to-Coast U.S. Trip
A Swiss pilot this weekend completed the first portion of a five-leg trip across the U.S. in an airplane powered by solar energy
. The so-called Solar Impulse
aircraft, which runs on energy collected from
View from the cockpit
12,000 solar cells in its long wings, flew from San Francisco to Phoenix in 18 hours and 18 minutes. The solar cells simultaneously power four batteries with the storage capacity of an electric car, which allows the plane to fly in darkness. The airplane, with a 208-foot wingspan, is made of lightweight, carbon fiber materials that help it conserve energy, but its spindly structure also makes the plane unable to fly in windy or stormy conditions. Project organizers hope the five-leg journey — which will include stops in Dallas, St. Louis, and Washington before landing in New York City — will demonstrate the feasibility of long-distance air travel without fuel. By 2015, the co-founders of the project, Bertrand Piccard and Andre Borschberg, hope to complete a flight around the world. The men have already flown the plane in Europe and North Africa.
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Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
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An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
The 2015 Yale e360 Video Contest winner documents a Northeastern town's bitter battle over a wind farm. Watch the video.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
A three-part series Tainted Harvest
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