Earth 2 Tech has a list of ways the military is using eco-technology. It includes solar power tents, aviation bio-fuel, micro fuel cells, hybrid drive technologies, and personal solar cells for recharging in the field.
There is a great deal of money in the military, and often research and innovation comes out of the military side that trickles down to civilians (night vision, Hummers, etc). It would be intriguing if green technologies are invented in the military industry have an effect on daily life. So far, however, most of these innovations look like they’re being taken from civilian industries and being tested in military arenas.
Now all we need is a eco-DARPA and we might see some very interesting results!
So called hot dry rock geothermal technology has the potential to be a huge generator of emissions-free technology for a relatively steep initial investment but very low ongoing costs. The basic concept is simple — dig a big hole in the ground to where the granite is very hot, pump in water, and let the resultant steam power a turbine. [photo by futureatlas] [slashdot]
Retired engineer Louis Michaud makes small tornados in his garage, but he wants to build them miles high. It works like this: route a nuclear power plant’s cooling pipes through an especially constructed building. Use big fans to blow air over the pipes. Use baffles and retaining walls to shape the hot air into a vortex. Put turbines in the path of the resultant tornado and recapture the energy that would otherwise be lost as waste heat. The idea without all the journalistic fluff of the article linked above is described on Michaud’s website, complete with diagrams. [digg]