SUPREME COURT: In oral arguments yesterday, justices appear divided over the EPA’s focus on large emission sources. (New York Times)

ALSO: The Supreme Court won’t hear a challenge to FERC rules on cost allocation for transmission projects. (Platts)

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SOLAR: A company specializing in networked energy storage systems says Chicago is “the largest untapped solar market in the U.S.” (Greentech Media)

OHIO: State Rep. Bill Seitz says he believes his latest attempt to roll back Ohio’s renewable energy law, which he once again compares to “Stalin’s five-year plans,” will succeed this time. (Columbus Business First)

OIL AND GAS:
• Colorado is the first state to regulate methane emissions. (Bloomberg)
• Ohio moves to plug abandoned gas wells. (Cleveland Plain Dealer)
• A North Dakota county wants the state to clamp down on illegal dumping of oil field waste. (Fargo Forum)
• GE plans to invest an additional $10 billion in energy research, including waterless fracking and improved gas turbines. (Reuters)

EPA: Administrator Gina McCarthy will visit North Dakota this week, following criticism the agency didn’t come to the state to gather input on proposed power plant emission rules. (Fargo Forum)

EFFICIENCY: Madison’s city council delays a vote on a proposed ordinance requiring commercial buildings to disclose their energy use, and Duluth’s Great Lakes Aquarium plans to cut electricity use by 30 percent. (Wisconsin State Journal, Duluth News Tribune)

KEYSTONE XL: How Nebraska’s rush to approve the Keystone XL pipeline backfired. (InsideClimate News)

BIOMASS: A Minnesota town considers a 30 MW biomass plant fueled by municipal and agricultural waste. (Grand Forks Herald)

TRANSPORTATION: Electric bicycle manufactures seek to make inroads in the U.S. (Climatewire)

POLITICS: Michigan Rep. John Dingell announces he is retiring after 59 years in Congress, during which he amassed an extensive environmental record. (ThinkProgress)

COMMENTARY: How depending on oil for transportation jeopardizes our security, and learning to live with climate denial. (New York Times, Discover)