"Energy companies were restoring offshore oil and natural gas production and restarting refineries on Sunday as the recovery from Hurricane Isaac shifted into high gear."

"As drug-resistant infections become an increasingly serious threat worldwide, new research show the problem may be spreading right under our feet. A new study in the journal Science shows that disease-causing germs and harmless bacteria in the soil are exchanging genes that make them resistant to antibiotics -- a finding that may have implications for the widespread use of antibiotics in livestock."

"California public health scientists have twice recommended in the past five years that Yosemite National Park authorities educate visitors about hantavirus, a rare disease that is linked to the deaths of two park visitors, one illness and a possible fourth this summer. Yet park officials did not warn visitors until after the disease showed up in recent weeks."

"Labor Day is summer’s last hurrah, and families from across the country will be flocking to the beach this weekend to soak in some final rays. Beachgoers on the East Coast making their way to Cape Cod or one of six other National Seashores, however, might want to pause and take an extra look around at the wind-tossed dunes and sloping sands. Not just because summer is coming to an end, but because these areas are some of the most susceptible to the effects of climate change and may look very different, very soon."