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The Top 10 Emerging Environmental Technologies, brought to you by LiveScience.
#10: Make paper obsolete

#9: Bury Carbon Dioxide

#8: Let plants and microbes clean up after us

#7: Plant your roof

#6: Harness waves and tides

#5: Ocean thermal energy conversion

#4: Solar cells and solar thermal collectors

#3: Hydrogen power

#2: Desalination, remove the salt from ocean water

#1: Make oil from just about ANYthing