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Solar Streetlights

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Early streetlights relied on a flickering flame, while later versions got a bulb and electric-power lines. Now a new streetlight is poised to rule the road, one that taps the sun’s energy by day and turns it into a bright … Continued

Copenhagen and the USA

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When U.S. negotiators show up in Copenhagen next month to work on a deal to tackle global warming, they probably won’t have in their pockets what they most wanted: a law enacted by Washington committing the country to carbon pollution … Continued

Americans using less water

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FRESNO, Calif. (AP) — Americans are using less water per person now than they have since the mid-1950s, thanks to water-saving technologies and a nationwide push to safeguard dwindling supplies. A report released Thursday by the U.S. Geological Survey also … Continued