Let there be (more efficient) light 0

Big savings possible:
A global switch to efficient lighting systems would trim the world's electricity bill by nearly one-tenth.

That is the conclusion of a study from the International Energy Agency (IEA), which it says is the first global survey of lighting uses and costs.

The carbon dioxide emissions saved by such a switch would, it concludes, dwarf cuts so far achieved by adopting wind and solar power.

David Roberts is staff writer for Grist. You can follow his Twitter feed at twitter.com/drgrist.

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