• Large number of salmon return to Columbia River Friday, 12 Sep 2014 | 3:07 PM ET

    PORTLAND, Ore.— Hundreds of thousands of salmon are making their way from the ocean up the Columbia River this month, a windfall for salmon eaters, and for tribal and recreational fishermen in the Pacific Northwest.

  • INFLUENCE GAME: Chemical trade tries to shape regs Friday, 12 Sep 2014 | 12:11 PM ET

    "Rather than be picked apart on a state-by-state basis, with different regulations, we needed to have a coherent and cohesive federal system," said Anne Kolton, spokeswoman for the American Chemistry Council.

  • Since entering the race in mid-August, Silva has picked a pro-agriculture congressman as her running mate, met repeatedly with agribusiness leaders and campaigned in the farm belt, eager to make allies in an industry that accounts for a quarter of Brazil's economy. The fuel price controls have gutted Brazil's once-booming sugar cane ethanol industry.

  • Fracking or drinking water: Must we choose? Friday, 12 Sep 2014 | 11:35 AM ET
    A crewman watches over water tanks used for hydraulic fracturing at an Anadarko Petroleum Corporation site near Brighton, Colo.

    Many shale-rich countries face a dilemma, says a new report. It might mean a choice between fracking for energy or having enough water to drink.

  • Groups sue over oil shipments in older rail cars Thursday, 11 Sep 2014 | 3:32 PM ET

    SEATTLE— Environmental groups sued the U.S. Department of Transportation on Thursday over the shipment of volatile crude oil in older railroad tank cars. That petition sought an emergency order to prohibit crude oil from the Bakken region of North Dakota and Montana and elsewhere from being carried in older tank cars, known as DOT-111s.

  • Development banks pledge to step up climate action Thursday, 11 Sep 2014 | 7:35 AM ET

    *Statement comes before Ban summit in New York on Sept. 23. Secretary-General Ban Ki- moon in New York, the World Bank and other banks said they had delivered $75 billion in financing since they started joint tracking of funds in 2011..

  • Mexico pollution, water disputes turn political Thursday, 11 Sep 2014 | 7:07 AM ET

    MEXICO CITY— Water pollution disasters in Mexico have turned into political battles as officials struggled Wednesday to blame each other for the problems. A town in western Jalisco state is fighting state officials over what caused the death of more than 200 tons of fish at a local lake.

  • Scientists say the ozone layer is recovering Thursday, 11 Sep 2014 | 6:53 AM ET

    WASHINGTON— Earth's protective ozone layer is beginning to recover, largely because of the phase-out since the 1980 s of certain chemicals used in refrigerants and aerosol cans, a U.N. scientific panel reported Wednesday in a rare piece of good news about the health of the planet.

  • SEOUL, Sept 11- A cap on carbon dioxide emissions that South Korea expects to introduce as part of a carbon trading scheme will be around 3 percent larger than previously touted over the next three years, the government said on Thursday.

  • Maine group gets grant for wind power technology Wednesday, 10 Sep 2014 | 6:39 PM ET

    PORTLAND, Maine— A Maine research group is getting a $1.1 million federal grant to help develop new technology to detect birds and bats near wind turbines. Biodiversity Research Institute will use the funding to further create a system of high-technology cameras.

  • Study: North Texas drilling adds $11.8B to economy Wednesday, 10 Sep 2014 | 3:56 PM ET

    FORT WORTH, Texas— Production from the natural gas-rich Barnett Shale in North Texas has risen even as drilling activity and natural gas prices have fallen, according to a study commissioned by the Fort Worth Chamber of Commerce released Wednesday.

  • Industry to seek changes in 'fracking' rules Wednesday, 10 Sep 2014 | 1:36 PM ET

    CHICAGO— Supporters of high-volume oil and gas extraction said Wednesday that they'll seek dozens of changes in proposed rules governing the practice in Illinois that they believe violate a hard-won compromise between industry and environmentalists.

  • The groups, led by the Sierra Club, AFL-CIO, the Communications Workers of America, the Citizens Trade Campaign, and Public Citizen, said TPA should be replaced with a new system that gives both Congress and the public a louder voice in trade negotiations.

  • HOUSTON, Sept 9- The first substantial oil-by-rail project at a California refinery won approval on Tuesday despite a last-minute push for more scrutiny by some environmental groups.

  • Court blocks pollution rules for Wyoming plants Tuesday, 9 Sep 2014 | 6:22 PM ET

    Wyoming has proposed less stringent pollution controls on coal-fired power plants than those the EPA says are required to reduce regional haze in national parks and wilderness areas.

  • Quenching Beijing's thirst may stunt regional growth Tuesday, 9 Sep 2014 | 5:00 PM ET

    BEIJING, Sept 10- China is about to realise a dream of Communist leader Mao Zedong to redirect China's river flows to benefit Beijing and the dry north, but critics say the resources grab by the politically powerful capital will harm regional China.

  • Hundreds of W.Va. mines workers warned of layoffs Tuesday, 9 Sep 2014 | 4:49 PM ET

    CHARLESTON, W.Va.— In what has become a painful exercise across Appalachia, Patriot Coal is again telling hundreds of West Virginia mine workers that they could lose their jobs. On Tuesday, the St. Louis- based company said it sent federally required warning notices to all 360 workers at its Corridor G mining complex and prep plant near Danville.

  • Ranchers sue feds over access to mouse habitat Tuesday, 9 Sep 2014 | 2:03 PM ET

    ALBUQUERQUE, N.M.— In the latest dispute over public lands in the West, New Mexico ranchers are suing the federal government over its attempts to limit their cattle's access to water and grazing areas after a tiny mouse won endangered species protections in the Southwest.

  • Judge worried W.Va. company may abandon spill site Tuesday, 9 Sep 2014 | 11:14 AM ET

    Judge Ronald Pearson expressed the concern in an order filed Friday in U.S. Bankruptcy Court in Charleston. The order points out that Freedom Industries' plan to liquidate says the company expects to pay $850,000 or less to remediate its Charleston spill site, plus related consulting costs.

  • McCrory to let NC coal ash regulation become law Tuesday, 9 Sep 2014 | 11:03 AM ET

    Pat McCrory said Tuesday he won't sign a new law regulating Duke Energy's toxic coal ash pits because he has problems with it, but he will allow the legislation to become law without his signature.