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President Obama selects Allison Macfarlane as chairwoman of the Nuclear Regulatory Commission in a nod to the importance of the waste storage site in the swing state of Nevada.

WASHINGTON - Stirring the lingering debate over storing nuclear waste at Yucca Mountain in Nevada, President Obama tapped Yucca critic Allison Macfarlane as the new chairwoman of the Nuclear Regulatory Commission.




Research on Mt. St. Helens links the movement of underground magma to warning signs such as earthquakes and gas emissions.

Scientists dissecting the remains of the disastrous 1980 explosion of Mt. St. Helens in Washington state say that crystal formations trapped in volcanic rocks hold important clues about when a magma-loaded mountain is about to blow - a discovery that could help volcanologists make more accurate predictions about future eruptions.



For the first time, a cargo-carrying spacecraft made by a private company arrived at the International Space Station.



Heal the Bay credits the gains to a drier winter and construction of more facilities to capture, treat and divert tainted storm water. But the county still has seven of the state's top 10 most polluted beaches.

The water at 82% of Los Angeles County's beaches earned solid A or B grades in Heal the Bay's annual Beach Report Card, but many of the state's most polluted shores continue to be in the county.



Patagonia executives say that sales have soared despite the struggling economy, and that its environmental focus is key to its success.

High-end outdoor clothier and gear maker Patagonia Inc. is out to prove that a company can generate strong sales while being nearly fanatical about environmental concerns.



text L.A. OKs ban on plastic bags at checkout
Thu, 24 May 2012 00:00:00 PDT
Council also imposes a 10-cent fee on paper totes. The law will be phased in over the next 16 months.

Los Angeles became the largest city in the nation to approve a ban on plastic bags at supermarket checkout lines, handing a hard-fought victory to environmentalists and promising to change the way Angelenos do their grocery shopping.



The male cougar shot and killed by Santa Monica police on Tuesday was 3, the age that the big cats go in search of their own territory.

In the end, the mountain lion was probably looking for a place to call his own.



SpaceX's Falcon 9 rocket, topped by an unmanned capsule, blasts off from Cape Canaveral, Fla., on a three-day trip to the International Space Station.

In a pivotal moment for private spaceflight, a towering white rocket lifted into space a cone-shaped capsule headed for a three-day trip carrying cargo to the International Space Station and a tricky rendezvous in outer space this week.



Families and activists turn out to support Senate Democrats' Safe Chemicals Act, which would strengthen monitoring of toxic chemicals in consumer products. Chemical manufacturers say the act is seriously flawed.

WASHINGTON - Moms, a few dads and some children gathered at the Capitol on Tuesday to urge Congress to strengthen the federal government's powers to regulate harmful chemicals.



The Natural Resources Defense Council says the document on the proposed football stadium failed to fully analyze traffic-related health risks.

An environmental group that has supported a proposed downtown Los Angeles football stadium and helped the developer secure special treatment in the courts issued a sharply worded critique Tuesday of environmental documents prepared for the project.