Power up: Scaling energy

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  • ‘Conserve, conserve, conserve’

    A megawatt saved is better than a megawatt made, and there are plenty of ways to save energy without sacrifice.

    October 28, 2011
  • Harnessing the Earth, the atom and the leaf

    There are many sources that can make a contribution to our energy supply, but likely not at a major scale in the near future.

    October 27, 2011
  • Shining brightly

    Vast amounts of solar energy radiate to the Earth constantly, but tapping that energy cost-effectively remains a challenge.

    October 26, 2011
  • Where the wind blows

    How far can wind power go toward reducing global carbon emissions from electricity production?

    October 25, 2011
  • What can make a dent?

    Given the enormous scale of worldwide energy use, there are limited options for achieving significant reductions in greenhouse gas emissions.

    October 24, 2011