U.S. to submit plans to fight global warming; most others delay

By Alister Doyle and Valerie Volcovici OSLO/WASHINGTON - The United States will submit plans for slowing global warming to the United Nations early this week but most governments will miss an informal March 31 deadline, complicating work on a global climate deal due in December. The U.S. submission, on Monday or Tuesday according to a White House official, adds to national strategies beyond 2020 already presented by the 28-nation European Union, Mexico, Switzerland and Norway. Together, they acc