May-June 2014

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Features

Seventh Annual Efficient Cars Roundup

Sales of plug-ins and hybrids grew 21 percent in 2013, to 592,232 cars— 3.8 percent of the new car fleet.

By Seth Masia

 

Building a Fleet of Electric-Drive Cars

We couldn’t wait for the factories, so we built our own.

By Steven Strong

 

Biofuels Progress: Where Do We Stand?

As ethanol stalls, the military and airlines push hard for new biojet fuels. Where will they come from?

By Seth Masia

 

Sustainable Transportation 2014

Shifting Gears for the Long Fight

By Lucas Dixon

 

Perspective

To the Barricades

By Seth Masia

 

PV Power Map

PV Generation Potential for January and February 2014

By Adam Kankiewicz

 

 

Advances

Solar Impulse 2 to Circle the World

Solar Decathlon Heads to Colombia in 2015

New Ultrathin Material Has Solar Potential

Solar-Powered Toilet Produces Biochar

Dire Warning on Climate Change from IPCC

 

 

Get Involved with Your Local Air-Quality Process

By Robert Ukeiley

 

 

Green Business

Tesla Gigafactory: Boom for Rare Earths, Cheap Energy Storage

By Rona Fried, Ph.D.

 

 

Howzit Work?

Hybrid Cars: Parallel vs. Series

 

 

The Trade

Working Smart on Small Turbine Towers

By Mick Sagrillo

 

 

System Accomplished

Elevator Uses Solar and Storage for Net-Zero Operation

By Seth Masia

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