Article Photos: Obama to confront oil pipeline, climate change 2/4

FILE - This Jan. 16, 2013 file photo shows outgoing Interior Secretary Ken Salazar entering the South Court Auditorium at the White House in Washington. The White House says tackling climate change and enhancing energy security will be among President Barack Obama's top priorities in his second term. Obama will have to do that work with new heads of the agencies responsible for the environment. Interior Secretary Ken Salazar, Environmental Protection chief Lisa Jackson and Jane Lubchenco, head of the National Oceanic and Atmospheric Administration, all have announced they are leaving. Energy Secretary Steven Chu is expected to follow his colleagues out the door in coming weeks. (AP Photo/Carolyn Kaster, File)