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Federal
Sensitivity of the Puget Sound ecosystem to ocean acidification using mineralogy and taxonomy as indicators (NCEI Accession 0169109)
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset contains a number of files related to a project that characterizes the sensitivity of the Puget Sound ecosystem to ocean acidification by estimating, at... -
Federal
United States annual state-level population estimates from colonization to 1999
Department of Agriculture —
The U.S. landscape has undergone substantial changes since Europeans first arrived. Many land use changes are attributable to human activity. Historical data...