Panel studies impact of wind turbines, transmission lines on lesser prairie chicken habitat

Okla. panel studies lesser prairie chicken habitat

EPA says TransCanada’s environmental report doesn’t address key concerns

EPA: Keystone XL impact statement needs revising

Roll Call: Senate rejects effort to stop EPA from regulating greenhouse gases

Senate roll call on greenhouse gas regulations

Scientific American columnist Martin Gardner, prolific math and science writer, dies at 95

Martin Gardner, 95, math and science writer, dies

Martin Gardner, mathematics and science writer, dies at 95 in Oklahoma

Martin Gardner, math and science writer, dies

House roll call on bill to pay homeowners for energy-efficiency improvements

House roll call on energy rebate bill

The 246-161 roll call Thursday by which the House passed a bill to give homeowners rebates for renovating their homes with better insulation and energy-saving windows.

Amtrak starts yearlong test of beef-based biodiesel on passenger line between Oklahoma, Texas

Cattle-based fuel runs Okla.-Texas passenger train

Space shuttle Discovery, 7 astronauts back home in Fla. after rare flyover of US heartland

Space shuttle Discovery, crew of 7 back on Earth

Space shuttle Discovery zooms toward Fla. landing, rare flight path crosses US heartland

Space shuttle Discovery zooms toward Fla. landing

Report concludes limited environmental impact from oil pipeline in western SD and other states

Report assesses impact of South Dakota pipeline

Attorney: Poultry companies ‘knew better,’ but polluted watershed anyway; trial testimony ends

Atty: Poultry companies turned watershed into mess

Obama invites struggling families, wounded soldiers to hear the State of the Union

Environmental group seeks federal protection for Texas kangaroo rat, 4 other species

Group seeks protection for rat, 4 other creatures

Down year for biofuels ends badly; tax credit for biodiesel producers expires

Bad year for biofuel ends on a dour note

OKLAHOMA CITY — An alternative fuel for diesel engines is off to a shaky start this year though it emits fewer pollutants and cuts down on petroleum use because it’s made from environmentally friendly waste and vegetable oil.

Indian tribes buy back ancestral land to help preserve culture, improve economic opportunities

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