United Nations Secretary-General Ban Ki-moon says the United States has to lead if the world hopes to deal with global warming, AP reported. Ban is making a two-day visit to Seattle as part of a trip to improve the American public"s relations with the U.N. He will receive an honorary degree from the University of Washington on Monday, after meeting earlier in the day with Bill and Melinda Gates to discuss ways to reduce maternal death rates around the world. In an interview Sunday with The Seattle Times, Ban said he"s hopeful the U.S. Senate will soon adopt legislation to limit carbon emissions. He says that if the U.S. doesn"t act soon, India and China may bail out of climate negotiations. -- SPA