United Press International: BALI, Indonesia, Dec. 15 (UPI) — The United States reluctantly has agreed to join a global effort to negotiate a new climate change treaty to reduce greenhouse gas emissions. “We will go forward and join consensus,” Paula Dobriansky, the head of the U.S. delegation said Saturday. The United States, in a dramatic reversal, agreed to give poorer countries financial aid and clean technology after the U.S. delegation was booed in Bali at the two-week climate change …