Data on the carbon-intensity of each nation's electricity mix are from the International Energy Agency. The carbon emissions of various fuels are those used by the U.S. Energy Information Administration and the North American nonprofit collaborative, The Climate Registry.
Credits: Design by Stefan Estrada. Illustrations by H2H Graphics & Design. Text by Matthew Lewis, Mason Inman, David LaGesse, Barbara Mulligan, Mary Anne Mulligan, Jeff Smith, Ker Than, and Marianne Lavelle.
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The Great Energy Challenge is a National Geographic initiative to help you understand our current energy situation. Explore the GEC to figure out and trim your carbon footprint.
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See which countries pay the most for tax breaks and other mechanisms that keep fossil-fuel prices down.
How much could you save yourself, and the world, by switching to more efficient bulbs? Use this tool to find out.
An interactive view of how regions and countries around the world generate their power.
Learn more about the energy-saving projects being funded as part of National Geographic's Great Energy Challenge program.
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Great Energy Challenge Blog
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The shale gas industry maintains that it protects drinking water and land. But mistrust has been sown in rural communities.
The industry promises jobs to a state badly in need of an economic boost, but the work so far isn't where you might expect it to be.
Track the growing mark that energy companies have etched on Pennsylvania since first producing natural gas from shale.