ETHANOL: A new study finds biofuels made from cornfield waste have a worse impact on climate than gasoline. (Associated Press)

COAL: Siding with North Dakota, a federal judge strikes down part of a Minnesota law requiring carbon offsets for imported coal power. Minnesota Gov. Mark Dayton says the state will appeal the ruling. (Minneapolis Star Tribune, Minnesota Public Radio)

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NATURAL GAS: Ohio utilities are replacing thousands of miles of natural gas pipelines, some of which are more than 100 years old. (Midwest Energy News)

SOLAR: The solar industry “has now grown big enough to have enemies,” a recent landmark solar decision boosts the fortunes of a Minnesota renewable energy company, and an 8MW solar array atop a Superfund site — the largest of its kind in the U.S. — goes online in Indiana. (McClatchy, Minneapolis Star Tribune, Evansville Courier & Press)

KEYSTONE XL: The Obama administration delays a decision on Keystone XL until a court challenge in Nebraska is resolved. (Greenwire)

OHIO: The mayor of Columbus, Ohio says a bill to freeze the state’s renewable energy law “is harmful to consumers,” and an Ohio town will see its electricity rates increase 25 percent from a deal with the Prairie State coal plant. (Columbus Dispatch, Toledo Blade)

WIND: Alliant Energy’s CEO says wind energy is becoming cost-competitive without tax credits, and imported wind energy from Iowa is expected to lower utility rates in Chicago. (Forbes, Chicago Sun-Times)

FRACKING: Ohio regulators’ acknowledgment of a “probably” link between fracking and earthquakes could increase insurance costs for homeowners. (Columbus Business First)

FRAC SAND: More than 5,000 Minnesotans have signed a petition calling for a two-year moratorium on frac sand mining, and a former EPA official says Wisconsin needs to be responsive to complaints about mining operations. (Minneapolis Star Tribune, Wisconsin State Journal)

OIL: A refinery near Chicago was evacuated for several hours last week after an equipment malfunction. (Times of Northwest Indiana)

***SPONSORED LINK: Register today ($15/individual) for the 15th Anniversary Conference of Wisconsin Interfaith Power & Light “Climate Stewardship: Sustainability, Eco-Justice and Well-Being” on May 18 in Milwaukee. Keynote, workshops, exhibits and more. Be a sponsor, $100-$1,000.***

EFFICIENCY: Researchers explore a correlation between “green” school buildings and better academic performance. (Columbus Dispatch)

COMMENTARY: Why Wisconsin needs to “make comprehensive energy reform a top priority.” (Wisconsin State Journal)

Ken is the director of the Energy News Network at Fresh Energy and is a founding editor of both Midwest Energy News and Southeast Energy News. Prior to joining Fresh Energy, he was the managing editor for online news at Minnesota Public Radio. He started his journalism career in 2002 as a copy editor for the Duluth News Tribune before spending five years at the Spokesman-Review in Spokane, Washington, where he worked as a copy editor, online producer, features editor and night city editor. A Nebraska native, Ken has a bachelor's degree from the University of Nebraska-Lincoln and a master's degree from the University of Oregon. He is a member of the Society of Professional Journalists and Investigative Reporters and Editors.

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