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  Obama headed to Copenhagen, sets the bar for success 23 Posted 1 day, 23 hours ago

• What to make of the new climate poll 22 Posted 2 days, 8 hours ago

• Will Africa’s farmland become a ‘resource curse’? 7 Posted 2 days, 16 hours ago

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• Just Screw It

  Umbra on replacing light bulbs 19

  Posted 3 years, 5 months ago By Umbra Fisk

• Fan-tastic

  Umbra on personal fans 1

  Posted 3 years, 5 months ago By Umbra Fisk

• Oil She Wrote

  Umbra on canola oil 0

  Posted 3 years, 6 months ago By Umbra Fisk

• You Can Count on You

  Umbra on global warming and you 5

  Posted 3 years, 6 months ago By Umbra Fisk

• The Vapor Chase

  Umbra on water vapor and climate change 6

  Posted 3 years, 7 months ago By Umbra Fisk

• This Old Greenhouse

  Umbra on the greenhouse effect 1

  Posted 3 years, 7 months ago By Umbra Fisk

• Apocalypse 101

  A climate-change compendium 2

  Posted 3 years, 7 months ago By Umbra Fisk

• Pack to the Future

  Umbra on climate-induced relocation 2

  Posted 3 years, 7 months ago By Umbra Fisk

• Breaking the Cycle

  Umbra on climate-change patterns 0

  Posted 3 years, 7 months ago By Umbra Fisk

• Don't Discount Him

  An interview with Wal-Mart CEO H. Lee Scott 22

  Posted 3 years, 7 months ago By Amanda Little

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