Roots of Georgia-Russia clash run deep

The war broadened Monday as Russian troops moved beyond rebel provinces into Georgia proper.

MOSCOW - Ancient ethnic strife, fanned by East-West rivalry and Moscow's growing regional ambitions, lie behind the war over Georgia's breakaway regions of South Ossetia and Abkhazia, where Russian troops opened a second front Monday. [more]

Why U.S. parks put land purchases on hold

Some 1.8 million acres inside and abutting national parks are at risk of development.

Northern Arizona - Standing beside a barbed-wire fence that once kept cattle from roaming off his sprawling 28,000-acre ranch, Mike Fitzgerald gazes into the distance and sweeps his hand across the pale horizon. [more]

Texas test case for candidates' energy plans

The candidates share many concerns, but have clear differences in approach, too.

Austin, Texas - As part of his solution to America's energy woes, Barack Obama wants to phase out the common light bulb in six years.

The Democratic senator's solution � under current law they phase out in 12 years � is taking place here where a city contractor is busy replacing incandescent bulbs with energy-saving compact fluorescent models. The goal: reduce power consumption so the city doesn't have to build another power plant. [more]

An artificial flood does good in the Grand Canyon

Researchers hope controlled high flows from Glen Canyon Dam will help restore natural habitat.

With quick flicks of his Japanese calligraphy brush, Dave Rubin sends dry sand particles flying into the wind. He's crouched in a four-foot-deep sand trench with a trowel in one hand, brush in the other, and the Colorado River flowing behind him. Dr. Rubin, a US Geological Survey senior scientist, leans back and studies the sand layers, trying to read their story � the tale of this year's three-day high-flow experiment that thundered down the Grand Canyon. [more]

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