Jacob O. Sewall Research Interests

I am an earth system scientist with training in both geology and climate modeling. My research interests focus on understanding past Earth climates (paleoclimates), changes in the climate system, and the interactions between the geosphere, biosphere, hydrosphere, cryosphere, and atmosphere as an integrated earth system. In keeping with my training, my research involves the use of both geological data and numerical models. I use these tools to address climate change issues on scales from global to regional and from the deep past to the present.

Much of my research focuses on "greenhouse" climates, both past and present, in an effort to understand not only how greenhouse worlds are achieved, but also how they function and how they are maintained for millions of years. This research has focused in the early Paleogene (45 - 65 Ma) and the middle Early through Late Cretaceous (70 - 120 Ma).

Understanding changing climate regimes in any time period is related to understanding the interactions between atmospheric and surface conditions. Those interactions can be as broad as the climatic influence of a growing orogeny and as narrow as water resources in part of a state. Climate and climate change exert a strong influence on surface conditions and the integrated investigation of not only climate and climate change, but also the impacts that climate has or will have on past, present, and future ecosystems and societies is rapidly becoming an overarching focus of my research interests.

Climate and Earth Systems Research Group Department of Physical Sciences Kutztown University of Pennsylvania

About Courses Research People Publications Boundary Conditions Contact News		Research Interests I am an earth system scientist with training in both geology and climate modeling. My research interests focus on understanding past Earth climates (paleoclimates), changes in the climate system, and the interactions between the geosphere, biosphere, hydrosphere, cryosphere, and atmosphere as an integrated earth system. In keeping with my training, my research involves the use of both geological data and numerical models. I use these tools to address climate change issues on scales from global to regional and from the deep past to the present. Much of my research focuses on "greenhouse" climates, both past and present, in an effort to understand not only how greenhouse worlds are achieved, but also how they function and how they are maintained for millions of years. This research has focused in the early Paleogene (45 - 65 Ma) and the middle Early through Late Cretaceous (70 - 120 Ma). Understanding changing climate regimes in any time period is related to understanding the interactions between atmospheric and surface conditions. Those interactions can be as broad as the climatic influence of a growing orogeny and as narrow as water resources in part of a state. Climate and climate change exert a strong influence on surface conditions and the integrated investigation of not only climate and climate change, but also the impacts that climate has or will have on past, present, and future ecosystems and societies is rapidly becoming an overarching focus of my research interests.