The impact of climatic changes on the lithosphere and ocean has also been the subject of recent research at LSU, in the tradition of R.J. Russell, James P. Morgan, and J.M. Coleman. For example, Mike Blum has investigated responses of large river systems to climate and sea-level change. Patrick Hesp's research on changes to barrier-island ecosystems under climatic forcing mechanisms also falls within this realm. Likewise, Gregory Stone has analyzed the effects of tropical cyclones and winter storms on coastal morphosedimentary dynamics and post-storm adjustment, and Masamichi Inoue observes deepwater circulation changes by a mooring deployed in the eastern Gulf of Mexico.

In addition to the research and teaching mission of LSU climatologists, service has traditionally played an important role. Four state climatologists (George Cry, Robert Muller, John "Jay" Grymes, and Barry Keim) have distributed climatic data for the state that has been used in research on climatic change. In addition, since 1990, staff associated with LSU's Southern Regional Climate Center, directed by Muller and later, Kevin Robbins, has archived and distributed data for the six-state region of Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, and Texas. Several papers have been published on the applicability, utility, and limitations of climatic data.

sEE ALso: Hurricanes and Typhoons; Louisiana; Weather.

BIBLioGRAPHY. Louisiana Office of State Climatology Web site, (cited January 2008); Louisiana State University, (cited January 2008).

Robert V. Rohli Louisiana State University

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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