"nca1" . "Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change: Foundation Report"^^ . "2001"^^ . "http://downloads.globalchange.gov/nca/nca-2000-foundation-report.pdf"^^ . "This document is the Foundation report, which provides the scientific underpinnings for the Assessment."^^ . "assessment" . "Physical Climate,Observations,Modeling,Carbon Cycle,Agriculture & Food,Water Resources,Human Health,Coasts,Oceans,Ecosystems & Biodiversity"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 .