Power up: Scaling energy

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

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

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

Where the wind blowsHow far can wind power go toward reducing global carbon emissions from electricity production?

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.