; (B) any backlog in meeting the schedule set forth in this subsection for adopting, reviewing, and implementing climate impact management plans, or additional resources necessary to address any such backlog; and (C) the effectiveness of implementation and sufficiency of the measures adopted in climate impact management plans, and any recommendations for improving the process or the applicable legislation. (b) Monitoring of climate impacts The Secretary shall establish a program within the National Oceanic and Atmospheric Administration to monitor the adverse impacts of climate change on marine mammals. The purposes of the monitoring program shall be to— (1) improve models of projected future changes in marine mammal distribution and densities resulting from climate change; (2) identify and monitor interactions with fisheries and other human activities that may occur as a result of changes in marine mammal distribution or other effects of climate change; (3) monitor the abundance of species and population stocks, to an extent sufficient to detect a 20 percent population decline over 20 years; (4) improve understanding of the impacts of climate change on marine mammal species and population stocks