Reuters: Following are proposals for greenhouse gas targets to be considered at U.N talks on a new climate treaty in Bonn, Germany, from March 29-April 8. The talks are the first this year in a two-year push to agree a new U.N. climate treaty in Copenhagen in December 2009. The following factbox is based on ideas submitted to the United Nations. LONG-TERM GOALS “There is broad support by Parties for a science-based indicative goal for the reduction of global emissions of …