Comments by "mpetersen6" (@mpetersen6) on "Geothermal Energy: How Big is the Potential?" video.

  1. Pick-up trucks with bumper stickers (1). Or V-8 and V-12 Mercedes, M Series BMWs or high output Porsches going flat out on the Autobahn. 1) And i do think that there are far too many people driving full size pick-ups that have zero use for them.
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  2. Subway tunnels? I doubt it. Current tunneling tech works pretty well. Even if tomorrow we went 100% renewables (1) the oil industry is not going to go away. Too useful or other things. Coal isn't going to completely disappear either. Not unless we have a way to completely replace coke in the steel making process. But if we can get most of the transportation and all of the energy segment out of the equation then CO2 output should be manageable. 1) One segment of transportation that is going to be hard to get away from hydrocarbons completely is aviation. H2 takes too much volume for fuel tanks and electric 777s. Yah, right. But one segment of aviation we can replace is short haul flights with High Speed Rail. HSR might have slower trip times but less time involved in arriving at the airport etc. But even then I don't think you can replace all short haul flights with HSR. In some cases the traffic density simply isn't there.
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