Related: Green Machines

1. More Green Machines
   1. Green is big draw at LA Auto Show
   2. Orbital solar plants could meet energy needs
   3. Thermostat reinvented, and it's finally good
   4. Solar power begins to go mainstream
   5. GM to launch electric Chevy Spark
2. More Environment
   1. Boy Scouts' logging puts rare plant in danger
   2. Chemical releases rarely lead to punishment
   3. Fracking boom triggers water battle in North Dakota
   4. Buggy hordes of cicadas sighted in Virginia
   5. Melting glaciers contribute to rising ocean levels
3. Related videos
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      Superstorm Sandy victims encouraged to sell homes
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      Melting glaciers contribute to rising ocean levels