University Of California Berkeley Archives – The Green Optimistic green tech news, since 2008 Thu, 23 Jan 2014 20:03:17 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Can Smarter GPS Reduce Emissions? https://www.greenoptimistic.com/can-smarter-gps-reduce-emissions-20140123/ https://www.greenoptimistic.com/can-smarter-gps-reduce-emissions-20140123/#respond Thu, 23 Jan 2014 20:03:17 +0000 https://www.greenoptimistic.com/?p=45405 Civilian access to the military’s global positioning system (GPS) satellites has been all kinds of wonderful for backwoods trekkers and getting around an unfamiliar town, but can it be smarter, and how could it reduce emissions? First, GPS is actually useless without a up-to-date map and a magnetic compass. Modern GPS units include these functions […]

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]]> https://www.greenoptimistic.com/can-smarter-gps-reduce-emissions-20140123/feed/ 0 45405 Trains Polluting More Than Airplanes in the U.S.? https://www.greenoptimistic.com/trains-polluting-more-than-airplanes-in-the-us-20090612/ https://www.greenoptimistic.com/trains-polluting-more-than-airplanes-in-the-us-20090612/#comments Fri, 12 Jun 2009 09:28:47 +0000 https://www.greenoptimistic.com/?p=3742 A recent study reveals shocking figures telling that, basically, traveling by train pollutes the environment more than traveling by airplane. How can that be?

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