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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.

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Machines sharing information with other machines is more efficient than having one of us humans gumming up the works.

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But could a smart grid or precision farming, in which the machines inform each other and make subsequent decisions, significantly reduce energy use and, thus, greenhouse gas pollution?

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A new report from eclectic billionaire Richard Branson's Carbon War Room says yes.

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The report claims potential savings of nearly 20 percent of current global emissions, or more than 9 billion metric tons of carbon dioxide per year.

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The changes could come quickly too, with pollution down 1.5 billion metric tons by the end of the decade.

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But what are we really talking about?

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First off, it's smart meters for home energy use that maximize efficiency.

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And building-wide systems that ensure the lights or air conditioning turn off when not needed.

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It's also smart transportation--planes, trains and automobiles that can talk to each other to more efficiently move goods and people.

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Finally, it's smart agriculture--for example, sensors in the ground that measure moisture or fertility and prevent farmers,

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or their automated proxies, from over-watering or applying too much fertilizer.

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Many barriers exist to ubiquitous machine-to-machine communication, not least of which is a lack of shared standards.

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But enabling the machine conversation might ease our climate change crisis

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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello,

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