$45 Trillion Needed to Combat "GLOBAL WARMING" - I Say: Mine The Moon!

The world needs to invest $45 trillion in energy in coming decades, build some 1,400 nuclear power plants and vastly expand wind power in order to halve greenhouse gas emissions by 2050, according to an energy study released Friday.

The report by the Paris-based International Energy Agency envisions a "energy revolution" that would greatly reduce the world's dependence on fossil fuels while maintaining steady economic growth.

"Meeting this target of 50 percent cut in emissions represents a formidable challenge, and we would require immediate policy action and technological transition on an unprecedented scale," IEA Executive Director Nobuo Tanaka said.

Although considerable lunar soil would have to be processed, the mining costs would not be high by terrestrial standards. Automated machines, perhaps like those shown in the illustrations on the lead page, might perform the work. Extracting the isotope would not be particularly difficult. Heating and agitation release gases trapped in the soil. As the vapors are cooled to absolute zero, the various gases present sequentially separate out of the mix. In the final step, special membranes would separate helium-3 from ordinary helium.

The total estimated cost for fusion development, rocket development and starting lunar operations would be about $15 billion. The International Thermonuclear Reactor Project, with a current estimated cost of $10 billion for a proof-of-concept reactor, is just a small part of the necessary development of tritium-based fusion and does not include the problems of commercialization and waste disposal.