September 28, 2012 Charles Monnett's 2006 report on drowning polar bears became a rallying cry for environmentalists. Then he was accused of scientific misconduct. On Friday, he learned he had been cleared.
September 28, 2012 The Gouffre Berger cave in France was once dubbed the world's deadliest. Now it's a rite of passage for new cavers. Photographer Robbie Shone illuminates its dark, and cold, depths.
September 27, 2012 KCURAfter the Midwest's driest summer in decades, farmers are assessing their losses and gains. Despite the hit many farms took, the Agriculture Department predicts record high farm income this year, thanks to higher prices and federally subsidized crop insurance.
September 25, 2012 Centuries of silver mining have left Cerro Rico mountain in the southern highlands of Bolivia on the verge of collapse. The Spanish forced Quechua Indian slaves into the mines to bankroll their empire. Today, the Quechua own the mines, but conditions here are still brutal.
September 24, 2012 Muscular fish like salmon, tuna and eel can benefit from more exercise in a farmed fish environment. New research and a new book are aiming to convince fish farmers that getting fish to swim faster will mean healthier products, less waste, and more profit.
September 22, 2012 On World Rhino Day, people across the globe celebrate the rhinoceros and raise awareness to save all five species.
September 22, 2012 Residents of Zimbabwe's second largest city are flushing the toilets at the same time tonight. The action isn't some form of protest, but the result of 72 hours of water restrictions thanks to a severe drought.
September 21, 2012 An ancient beauty in southwestern Colorado, Chimney Rock became the third national monument named by President Obama on Friday. More than just a spectacular feature, Chimney Rock's towering sandstone pillars were of astronomical importance to the ancestral Pueblo people over 1,000 years ago.