Early 20th century impacts of atmospheric deposition on California ecosystems: Results from aquatic and terrestrial paleoarchives

James O Sickman1, Mark E. Fenn2, Andrzej Bytnerowicz2, Delores M Lucero1 and Beatriz Vindiola1, (1)University of California, Riverside, Department of Environmental Sciences, Riverside, CA, United States, (2)USDA Forest Service, Pacific Southwest Research Station, Riverside, CA, United States