Title Review of the U.S. Climate Change Science Program's draft synthesis and assessment product 2.4 [electronic resource] : trends in emissions of ozone depleting substances, ozone layer recovery, and implications for ultraviolet radiation exposure / Committee to Review the U.S. Climate Change Science Program's Draft Synthesis and Assessment Product 2.4, Board on Atmospheric Sciences and Climate, Division on Earth and Life Studies, National Research Council of the National Academies.