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Better Zinc-Air Batteries

September 26, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/09/EW-09-26-17-Better-Zinc-Air-Batteries.mp3

Zinc-air batteries are metal-air batteries powered by oxidizing zinc with the oxygen from the air.  They have high energy densities (as much as five times more energy than lithium-ion batteries) and are more environmentally friendly.  Since they are based on abundant zinc, they are potentially much cheaper to produce than the lithium-ion batteries that are used in so many current applications.  But because it is difficult and expensive to produce rechargeable versions of these batteries, they have only found limited use in hearing aids, in some film cameras, and in large form to power navigation instruments, oceanographic experiments and railway signals. 

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An Electric, Autonomous Container Ship

September 18, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/09/EW-09-18-17-Autonomous-Container-Ship.mp3

Electric cars are big news these days and so are self-driving cars.   But now there is about to be an electric, self-navigating cargo ship.  The soon-to-be-finished ship is called the Yara Birkeland, and is being built under a partnership between two Norwegian companies.

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Ditching Gas And Diesel Cars

September 14, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/09/EW-09-14-17-Ditching-Gas-and-Diesel-Cars.mp3

Electric cars represent only a tiny fraction of the overall auto market.  The numbers are growing, most certainly, but they are still quite small in most places.   The recent start of production of the Tesla Model 3 has attracted quite a bit of attention to electric cars, but in many countries, there is much more to the story than just media buzz about a new car.

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A Faster Car Battery

September 11, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/09/EW-09-11-17-A-Faster-Car-Battery.mp3

There is more and more interest in electric cars and, based on the half million advance orders for the Tesla Model 3, more and more of us plan to be driving them.  For many of us, the technology is already good enough to meet most if not all of our motoring needs.

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Electric Cars For Real This Time?

August 29, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/08/EW-08-29-17-Electric-Cars-for-Real.mp3

Electric cars have been around for a long, long time.  The first ones appeared in the mid-19th century.  Around the turn of the 20th century, they were popular for taxi cabs in places like New York City.  But within about 10 years, they mostly disappeared.  In the 1990s, electric cars had a brief revival with vehicles like the General Motors EV1.  But again electric cars mostly vanished.

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France And Climate Change

August 15, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/08/EW-08-15-17-France-and-Climate-Change.mp3

On the heels of the Trump Administration’s decision to withdraw from the Paris Climate Accord, France has rolled out ambitious plans to reduce its carbon footprint even further. 

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Islands Ditching Diesel

March 31, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/03/EW-03-31-17-Islands-Ditching-Diesel.mp3

Islands around the world have a difficult time developing the infrastructure for electricity generation.  Many are simply too small or too poor for conventional power plants.  The most common electricity source on islands is diesel generators which are not environmentally friendly and result in some of the most expensive electricity in the world.

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The Largest Battery Storage Substation

March 10, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/02/EW-03-10-17-The-Largest-Battery-Storage-Substation.mp3

At the end of last year, Southern California Edison turned on the largest lithium-ion battery storage facility in the world in Ontario, California.   It is a substation with 80 megawatt-hours of capacity, enough energy to power 2,500 households or charge 1,000 Tesla cars a day.

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Electric Car Boom

May 17, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/05/EW-05-17-16-Electric-Car-Boom.mp3

The introduction of the Tesla 3 and the 400,000 advanced orders for the vehicle have put the spotlight on electric cars recently.  But despite all the buzz, electric cars are sill only a tiny piece of the US car market:  about 0.66 percent last year.

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Electric Buses And Trucks

May 13, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/05/EW-05-13-16-Electric-Buses-and-Trucks.mp3

We hear a great deal about electric cars these days.  Will people buy them?  Are they worth it?  And, of course, there is the tremendous buzz surrounding Tesla’s forthcoming moderately-priced car.   But there is also lots of activity in electrifying larger vehicles, including garbage trucks, city buses, and medium-sized trucks used by freight companies like FedEx.

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Old Car Or New Car?

April 26, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/04/EW-04-26-16-Old-Car-or-New-Car.mp3

Every few years many of us face a big decision: is it time to buy a new car? The trusty vehicle that has carried us so well has gotten too rusty to pass inspection or too old to assure us of its continued reliability. What vehicle choice is best for the environment?

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