{"id":176,"date":"2023-06-05T10:46:35","date_gmt":"2023-06-05T17:46:35","guid":{"rendered":"https:\/\/dornsife.usc.edu\/feakins\/?page_id=176"},"modified":"2023-10-25T13:24:52","modified_gmt":"2023-10-25T20:24:52","slug":"research","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/feakins\/research\/","title":{"rendered":"Research"},"content":{"rendered":"\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-177 aligncenter\" src=\"https:\/\/dornsife.usc.edu\/feakins\/wp-content\/uploads\/sites\/196\/2023\/06\/Peru-fin-2-400x300-1.jpeg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"https:\/\/dornsife.usc.edu\/feakins\/wp-content\/uploads\/sites\/196\/2023\/06\/Peru-fin-2-400x300-1.jpeg 400w, https:\/\/dornsife.usc.edu\/feakins\/wp-content\/uploads\/sites\/196\/2023\/06\/Peru-fin-2-400x300-1-300x225.jpeg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\">My research seeks to understand climatic and environmental change relevant to human society past, present and future. Even though we live on land, it is in lakes and the oceans that we often find the best-preserved records because of the slow but consistent accumulation of sedimentary archives under water, and we sample this by coring from boats large and small. Back in the lab, meticulous work centers on teasing out the climatic, environmental and biological signals contained within organic molecules. In particular, my lab specializes in extracting molecular level isotopic information out of the waxy molecules from plant leaves. To best interpret the evidence for past climate and environment, we work in parallel on modern environments \u2013 in ecological surveys and in experimental test scenarios \u2013 to continue to improve our understanding of how living plants record environmental information and how those molecules make their way into the sedimentary archives. More information on different aspects can be found on the links to the top right.<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n          \n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--link-list \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--link-list\"\n    \n      >\n\n    \n      <div class=\"header-container\">\n\n                  \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Research Activities\n      <\/h2>\n\n\n<\/div>\n                <\/div>\n  \n      <div class=\"links-container\">\n\n                        \n        \n          \n            <div class=\"column\">\n                <ul>\n                                                                  <li>\n                                \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/feakins\/molecular-and-isotopic-proxies\/\n    aria-label=\"Read more about Molecular and Isotopic Proxies\"  \n>\n    Molecular and Isotopic Proxies \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n\n                                                    <\/li>\n                                                                                        <li>\n                                \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/feakins\/climate-change-human-evolution\/\n    aria-label=\"Read more about Climate Change &#038; Human Evolution\"  \n>\n    Climate Change &#038; Human Evolution \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n\n                                                    <\/li>\n                                                                                        <li>\n                                \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/feakins\/climate-change-in-the-western-us-california\/\n    aria-label=\"Read more about Climate Change in the Western US &#038; California\"  \n>\n    Climate Change in the Western US &#038; California \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n\n                                                    <\/li>\n                                                          <\/ul>\n            <\/div>\n\n          \n          \n        \n          \n            <div class=\"column\">\n                <ul>\n                                                                  <li>\n                                \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/feakins\/warm-periods-in-deep-time\/\n    aria-label=\"Read more about Warm Periods in Deep Time\"  \n>\n    Warm Periods in Deep Time \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n\n                                                    <\/li>\n                                                                                        <li>\n                                \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/feakins\/beyond-ice\/\n    aria-label=\"Read more about Beyond Ice\"  \n>\n    Beyond Ice \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n\n                                                    <\/li>\n                                                          <\/ul>\n            <\/div>\n\n          \n          \n        \n\n\n\n    <\/div>\n  \n\n  <\/div><\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":575,"featured_media":418,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-content-detail.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-176","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Research - Sarah J. 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