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POPSGuerrilla Gardners I can see where some people might not like this on their private land, but I like the idea of using permaculture to beautify city medians, etc.
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POPSNanobots Gone Wild Many of these nanoparticles have specific jobs to do, and they might wreak havoc if they were to do those jobs in our bodies. On the other hand, nanoparticles might cause mutations that humans need to move up to the next level in our evolution. Who knows? That's is what the government is trying to find out.
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POPSGreen Gold Use algae as the biofuel to make real gasoline, not ethanol; this would be a wonderful new source of oil, if it works. Algae can grow anywhere, and it can be grown indoors in megatanks.