Obama heads to national parks with climate message in mind

U.S. President Barack Obama is taking his family to two national parks this weekend on a working vacation where he will spend some time with his teenaged daughters while making the case for more spending on conservation and curbing climate change. The Obamas will venture into the ancient labyrinth of caverns beneath the desert at Carlsbad, New Mexico, on Friday before flying west to the Sierra Nevada mountains and Yosemite, the country's oldest national park and one of its most popular landmarks. The president will help celebrate the centennial of the National Park Service, and he is also expected to talk about his plan to reduce climate-changing carbon emissions. He sees this as part of the legacy of his time in office...more