February 13, 2013
by MoreRecycling
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Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century. Erosion of the discharge channels walls, however, has… Continue reading
Share on FacebookJanuary 2, 2013
by Kaid Benfield
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Kaid Benfield, Director, Sustainable Communities, Washington, DC
In my final article of 2012, I looked back at the year in review, to honor important recent work worth celebrating. For my first one of 2013, let’s loo… Continue reading
July 19, 2012
by Kaid Benfield
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Kaid Benfield, Director, Sustainable Communities, Washington, DC
If you live in the US and have been outside lately, chances are you don’t need to be reminded that this is the hottest summer many of us can remember, and al… Continue reading
June 7, 2011
by David Newman
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David Newman, Oceans Program Attorney, New York DNA testing recently revealed that fish like tilapia are purposefully mislabeled and sold in grocery markets as pricier options like red snapper – as much as 77 to 90 percent of the time, accor… Continue reading
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