• Target asks customers to leave firearms at home Wednesday, 2 Jul 2014 | 10:22 AM ET

    NEW YORK— Target is "respectfully" asking its customers to not bring firearms into its stores, even where it is allowed by law. In a statement posted Wednesday on the retailer's corporate blog, interim CEO John Mulligan said that Target wants a "safe and inviting" atmosphere for its shoppers and employees.

  • NASA launches carbon satellite after 2009 failure Wednesday, 2 Jul 2014 | 6:15 AM ET

    VANDENBERG AIR FORCE BASE, California— A rocket carrying a NASA satellite lit up the pre-dawn skies Wednesday on a mission to track atmospheric carbon dioxide, the chief culprit behind global warming. NASA tried in 2009 to launch a satellite dedicated to studying carbon dioxide, the main greenhouse gas caused by the burning of fossil fuels.

  • Senate candidates show wide range on energy issues Wednesday, 2 Jul 2014 | 2:16 AM ET

    SIOUX FALLS, S.D.— South Dakota's candidates for U.S. Senate hold diverse positions on the government's role in energy development, from advocating a hands-off approach to supporting the regulation of power plants' carbon emissions. Tim Johnson are Democrat Rick Weiland, a Sioux Falls businessman; Republican former Gov.

  • Groups say coal ash dumps polluting 3 NC rivers Tuesday, 1 Jul 2014 | 3:18 PM ET

    CHARLOTTE, N.C.— An environmental group said Tuesday that it's planning to use the federal Clean Water Act to sue Duke Energy over coal ash pollution that threatens drinking water and public safety near three North Carolina power plants. Yet Duke Energy has not cleaned up these sites and DENR had not required Duke Energy to clean them up, "he said.

  • Michigan regulators OK fish hatchery expansion Tuesday, 1 Jul 2014 | 10:31 AM ET

    TRAVERSE CITY, Mich.— State officials approved a significant expansion of a northern Michigan commercial fish hatchery's operations Tuesday after requiring additional measures to protect the cherished Au Sable River.

  • Floods, drought, war? It must be El Niño again Tuesday, 1 Jul 2014 | 10:26 AM ET
    The Almaden Reservoir in San Jose, Calif., on Jan. 28, 2014.

    Experts expect the freak weather phenomenon to strike in the next few months, setting off a number of potential drawbacks globally.

  • ATHENS, July 1- Workers at Greece's state-controlled power utility PPC will stage a series of strikes from Wednesday, in the midst of the summer tourism season, to protest government plans to privatise the firm, their union leader said.

  • CAPE CANAVERAL, Fla., July 1- The launch of an unmanned Delta 2 rocket from Vandenberg Air Force Base in California was called off less than a minute before liftoff on Tuesday when the pad's water system failed, a live NASA Television broadcast showed.

  • US ship arrives in Italy port for Syria weapons Tuesday, 1 Jul 2014 | 4:55 AM ET

    GIOIA TAURO, Italy— The U.S. ship MV Cape Ray sailed into the southern Italian port of Gioia Tauro on Tuesday to handle the unprecedented transfer and destruction of about 1,300 tons of Syrian chemical weapons.

  • EU court upholds national green energy subsidies Tuesday, 1 Jul 2014 | 4:46 AM ET

    BRUSSELS— The European Union's top court is confirming countries have the right to limit subsidies for renewable energy to plants based on their territory, as opposed to companies' operations abroad.

  • Fracking study finds new gas wells leak more Monday, 30 Jun 2014 | 5:14 PM ET

    The results suggest that leaks of methane could be a problem for drilling across the nation, said study lead author Cornell University engineering professor Anthony Ingraffea, who heads an environmental activist group that helped pay for the study.

  • June 30- The U.S. Supreme Court on Monday declined to hear a challenge to California's landmark low-carbon fuel standard, in a blow to out-of-state ethanol and gasoline producers that say the rule unfairly discriminates against their products.

  • Court: NY towns make final call on gas drilling Monday, 30 Jun 2014 | 2:43 PM ET
    An opponent of the hydraulic fracturing holds a sign during a demonstration at the site of a Democratic party fundraiser March 20, 2014 in New York.

    New York state's top court ruled that individual towns have the final authority to ban gas drilling within their borders.

  • NASA to launch global warming satellite after loss Monday, 30 Jun 2014 | 2:13 PM ET

    LOS ANGELES— Five years after a NASA satellite to track carbon dioxide plunged into the ocean after liftoff, the space agency is launching a carbon copy— this time on a different rocket.

  • Feds mull Grand Canyon, Iowa for relocating bison Monday, 30 Jun 2014 | 1:15 PM ET

    The sites eyed for potential future herds include areas as diverse as Arizona's Grand Canyon National Park, an Iowa wildlife refuge and a North Dakota national historic site.

  • Ex-BP exec can be tried on obstruction charge Monday, 30 Jun 2014 | 12:58 PM ET

    NEW ORLEANS— A former BP executive can be tried on a charge that he obstructed a Congressional investigation into the 2010 Gulf oil spill, a federal appeals court in New Orleans said in a ruling posted Monday.

  • Ditching fossil-fuel stocks—the right response? Monday, 30 Jun 2014 | 11:25 AM ET

    Endowments are divesting holdings in fossil-fuel companies and students are cheering. But Terry Tamminen asks, Are these good intentions misguided?

  • New York top court OKs local gas-drilling bans Monday, 30 Jun 2014 | 9:08 AM ET

    ALBANY, N.Y.— New York's top court handed a victory to opponents of hydraulic fracturing for natural gas Monday by affirming the right of municipalities to ban the practice within their borders.

  • COLUMN-Why secular stagnation is wrong: Kemp Monday, 30 Jun 2014 | 9:02 AM ET

    LONDON, June 30- "Equality of opportunity as we have known it no longer exists," Franklin Delano Roosevelt warned gloomily in September 1932. In a campaign speech to the Commonwealth Club of San Francisco, the Democratic Party's nominee for president of the United States told his listeners that "opportunity in business has narrowed.

  • Railroad in explosion has its Canadian assets sold Monday, 30 Jun 2014 | 4:32 AM ET

    The fiery derailment nearly a year ago in Lac-Megantic was the worst railway accident in Canada in nearly 150 years and led to calls for making oil trains safer across North America.