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In the past, the zoo has had trouble mating this leopard species, which is hunted for skins and medicinal uses. In fact, males in captivity have been known to kill the females they are paired with. The secret this time around, the zoo says, is that the parents of the cubs grew up together. ()
The town of Cleburne, home to a huge natural gas deposit, has had six earthquakes this month. ()
California has been fighting the federal EPA over the issue for years. ()
Politics

July 1, 2009 · President Obama campaigned on a promise to bring a new era of openness and transparency to the White House. But less than six months into his presidency, there are already battles over what information should be made public — including a fight over the Secret Service logs of visitors to 1600 Pennsylvania Ave. ()
June 29, 2009 · California farmers grow most of the nation's fruit, nuts and vegetables. While some farmers there are fighting over dwindling water resources, others are reducing water use via technology and returning to natural rain as a water source for their crops. ()
Politics
June 27, 2009 · The U.S. House voted 219-212 for a sweeping bill to combat global warming. It would put gradually stricter caps on the total national output of heat-trapping gases, based on a system of permits that can be bought and sold. ()
June 26, 2009 · Ethanol and biodiesel were once touted as a green alternative to foreign oil. Now policymakers are questioning how much good biofuels actually do. A new report shows use of biodiesel may increase deforestation. ()

June 24, 2009 · A California think tank says global warming will gain more buy-in if it is viewed as an economic opportunity rather than a problem to be solved. ()
June 24, 2009 · Millions of people living in nearly 600 neighborhoods nationwide are breathing concentrations of toxic air pollutants that put them at a much greater risk of contracting cancer, according to new data from the Environmental Protection Agency. ()
World
June 26, 2009 · The International Whaling Commission has failed to agree on a plan to allow Japan to catch whales in coastal waters in exchange for giving up its "scientific research" catches of hundreds of whales annually. Critics say a proposal begin a slippery slope toward ending a two-decade-old moratorium on whaling. ()
Nation

June 23, 2009 · Four years ago, the failure of levees in Louisiana from Hurricane Katrina led authorities to re-evaluate the Herbert Hoover Dike that surrounds Lake Okeechobee in Florida. The results were alarming. Now, in a $1 billion project, the Army Corps of Engineers is strengthening levees that 40,000 residents depend on for safety. ()
June 22, 2009 · Forty years ago, Ohio's Cuyahoga River, which had been compared to "an open septic tank," caught fire. Cuyahoga became a rallying cry for environmentalists and sparked the creation of the EPA and the Clean Water Act. Now the river teems with fish and wildlife. ()
June 22, 2009 · The epicenter was 58 miles from the state's largest city, Anchorage. There were no immediate reports of damage or injury, but the shaking was felt over a wide area. Aftershocks shook the area, with one about a half-hour later measuring 4.0. ()
June 25, 2009 · Melissa Block talks to Steve Buchmann, the international coordinator of the North American Pollinator Protection Campaign, about National Pollinator Week, which is marked by the federal and most state governments. ()

June 22, 2009 · Tucked into the northwest corner of Colorado, the river flows freely today but is in hot demand. A powerful energy company, western cities and recreation advocates all want to lay claim to it. ()