National-level map and inventory of vegetated coastal ecosystems and Great Lakes ecosystems

(a) In general The Interagency Working Group shall produce, update, and maintain a national-level map and inventory of vegetated coastal and Great Lakes ecosystems that includes— (1) the types of habitats and the species in such ecosystems; (2) the condition of such ecosystems, including whether an ecosystem is degraded, drained, eutrophic, or tidally restricted; (3) the type of public or private ownership and any protected status of such ecosystems; (4) the size of such ecosystems; (5) the salinity boundaries of such ecosystems; (6) the tidal boundaries of such ecosystems; (7) an assessment of carbon sequestration potential, methane production, and net greenhouse gas reductions with respect to such ecosystems, including consideration of— (A) quantification; (B) verifiability; (C) comparison to a historical baseline as available; and (D) permanence of those benefits; (8) the potential for landward migration within such ecosystems as a result of sea level rise; (9) any upstream restrictions of such ecosystems that are detrimental to the watershed process and conditions, such as dams, dikes, levees, and other water management practices; (10) the conversion of such ecosystems to other land uses and the cause of such conversion; and (11) a depiction of the effects of climate change, including sea level rise, environmental stressors, and other stressors on the sequestration rate, carbon storage, and potential of such ecosystems. (b) Data incorporation; engagement In carrying out subsection (a), the Interagency Working Group shall— (1) incorporate, to the extent practicable, data collected— (A) by Federal agencies, State agencies, Indian Tribes, or local agencies through research that is funded, in whole or in part, by the Federal Government; and (B) through peer-reviewed published works; and (2) engage regional experts, State agencies, Indian Tribes, and additional data and information resources in order to accurately account for regional differences in vegetated coastal ecosystems and Great Lakes ecosystems. (c) Use of map and inventory The Interagency Working Group shall use the national-level map and inventory produced under subsection (a)— (1) to assess the carbon sequestration potential of different vegetated coastal ecosystems and Great Lakes ecosystems and account for any regional differences; (2) to assess and quantify emissions from degraded and destroyed vegetated coastal ecosystems and Great Lakes ecosystems; (3) to develop regional assessments in partnership with, or to provide technical assistance to— (A) regional, State, and local government agencies; (B) Indian Tribes; and (C) regional coastal observing systems (as defined in section 12303(6) of the Integrated Coastal and Ocean Observation System Act of 2009 (33 U.S.C. 3602(6))); (4) to assess degraded vegetated coastal ecosystems and Great Lakes ecosystems and the potential for restoration of such ecosystems, including developing scenario modeling to identify vulnerable land areas and living shorelines where management, conservation, and restoration efforts should be focused; (5) to produce predictions relating to carbon sequestration rates in the context of climate change, environmental stressors, and other stressors; (6) to inform how and where coastal vegetation can serve as natural infrastructure to most effectively protect coastlines from storm surges and climate hazards; and (7) to further understand which types of coastal and Great Lakes vegetation can be used as natural infrastructure to protect coastlines in different climates, especially cold climates, including the Arctic region.