• Why CDC responded with “lack of urgency” to formaldehyde warnings.

• 500,000 gallons of oil spilled from Hurricane Ike.

• Democratic Republic of Congo cancels two-thirds of logging contracts.

• Expert says 99 percent of Alaska’s glaciers are in decline.

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• Michigan governor signs renewables legislation.

• Algae fuels the green revolution.

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• Ted Turner announces first-ever sustainable tourism criteria.