Fusion Energy won't be Perfect

Fusion energy, cold or hot, is not "renewable" and is very unlikely to be "non-polluting". Wood energy is called renewable because the sun's rays can regenerate it. The sun, or anything else, cannot regenerate Hydrogen from Helium. There is, of course, an effectively unlimited supply of fuel long into the future. The main pollution of fusion will be heat, which could be a problem if we really get into it, producing another cause of global warming. Early working versions of fusion plants will no doubt be very inefficient. They will use a small percent of the available energy, dissipating a large percent (eventually all of it) into the environment. Free Oxygen, released by consumption of Hydrogen, is also a pollutant, but that's another story.

Send me your thoughts.
Dan Robinson, danrob@efn.org, Eugene, Oregon
My home page: http://www.efn.org/~danrob/