Bloomberg: Rich nations could use tradable credits from poorer countries that reduce deforestation for 5 percent of compliance with emissions-reduction requirements, according to a United Nations option. Use of credits tied to deforestation and forest degradation in developing countries, known as REDD, and other land-use change “shall not exceed 1 percent of base-year emissions of that party, times five,” according to a document dated yesterday on the Web site of the UN Framework Convention on …