Wall Street Journal: When the United Nations Climate Change Conference kicks off next week in Bali, Indonesia, delegates will be riding bicycles between meetings and shedding their suit jackets to save energy on air conditioning. The U.S. delegation, eager to convey a new spirit of cooperation on the issue, will be going casual. "Any chance I get to break out the flip-flops, I take," says James Connaughton, chairman of the White House Council on Environmental Quality, who will be …