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Green Innovations: Sci-fi or Real?
by Staff
From space-based solar arrays to robotic fleets of cloud seeders, green innovations can sound more like science fiction than reality. Do you know the difference?

Space-based solar arrays. Sci-fi or real?

  • real
  • sci-fi
  • coming down the pipeline

Plasma converters. Sci-fi or real?

  • real
  • sci-fi
  • potentially possible but not here yet

Farms in skyscrapers. Sci-fi or real?

  • real
  • sci-fi
  • in the works

Cold Fusion. Sci-fi or real?

  • real
  • sci-fi
  • just about figured out

Fuel-cell-powered UAVs, or unmanned air vehicles. Sci-fi or real?

  • real
  • sci-fi
  • still in the prototyping process

Robotic fleets of cloud seeders. Sci-fi or real?

  • real
  • sci-fi
  • still in the design phase

Artificial carbon-capturing trees. Sci-fi or real?

  • real
  • sci-fi
  • also still in the planning stages

Space mirrors. Sci-fi or real?

  • real
  • sci-fi
  • another planet-hacking scheme under development

Electronic paper. Sci-fi or real?

  • real
  • sci-fi
  • not likely in our lifetimes, but maybe someday

Planters made out of cow plop. Sci-fi or real?

  • real
  • sci-fi
  • probably possible, but nobody's jumping on this green innovation