Lynn Ingram is a paleoclimatologist — a scientist who studies changes in climate by studying rocks, sediments, shells, microfossils, trees and other materials. Her current research focuses on stratigraphy (the study or rock layers) with strontium isotopes and paleoclimatic and paleo-environmental reconstruction in aquatic environments. Ingram has assessed changes in climate in California over the past several thousand years, using geochemical analyses of sediment cores from San Francisco Bay and surrounding marshes, as well as stratified shellmounds from San Francisco Bay and Santa Barbara Basin. She has also studied lake sediments from California and the Gulf of California. She is co-author of The West Without Water: What Past Floods, Droughts, and Other Climatic Clues Tell Us About Tomorrow (UC Press, 2013). Her expertise includes sedimentary geochemistry, specifically using environmentally-sensitive isotopic tracers to document changes in salinity, streamflow, temperature, ocean circulation, and coastal upwelling. Ingram received her B.S. and her M.S. in geology from UCLA, the first in 1984, the second in 1989 and then her Ph.D in geology from Stanford in 1992. A 2014 Q&A with Ingram may be found here on the UC Berkeley NewsCenter.