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U.N. report: 95% certain humans to blame for warming

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CLIMATE: Drafts of an upcoming U.N. report say scientists are now 95 percent certain that human-caused emissions are causing climate change. (Reuters)

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TRANSMISSION: A utility arborist group wants power companies to move away from one-size-cut-it-all tree trimming in favor of encouraging vegetation that won’t conflict with transmission lines in the first place. (Midwest Energy News)

OIL: TransCanada acknowledges that oil sands crude can sink when it spills into water, contradicting claims by Enbridge. (EnergyWire)

Keystone XL opponents in Nebraska plan to build a barn in the pipeline’s path. (Associated Press)
Enbridge seeks to minimize disruption for neighbors as it expands a Michigan pipeline. (Mlive)
Minnesota landowners are caught off guard by a new Enbridge pipeline route. (Duluth News Tribune)
Wichita officials consider a plan to drill beneath a downtown apartment complex. (Wichita Eagle)

FRAC SAND: A Wisconsin county official is under investigation after being accused of abusing his office to advance his own sand-mining interests. (Minneapolis Star Tribune)

UTILITIES: The Sierra Club sues a Missouri utility, saying it’s failed to uphold its end of an agreement allowing a new power plant; Indiana customers will be refunded $32 million after utilities fall short on efficiency spending; and digital meters enable experiments with lowering off-peak rates. (Kansas City Star, Indianapolis Business Journal, Associated Press)

WIND: GE researches a quieter wind turbine blade that can also improve production. (CleanTechnica)

TRANSPORTATION: Fargo officials consider a plan to convert city vehicles to natural gas, trucking companies find ways to save fuel, and a St. Louis suburb adopts a green vehicle policy. (Minnesota Public Radio, Cedar Rapids Gazette, St. Louis Post-Dispatch)

COMMENTARY: Can climate science be communicated in a way that conservatives will be receptive to? (Grist)

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