Rebecca Jane Barthelmie is an atmospheric scientist and scholar of wind energy, including the effects of climate change on wind energy, estimation of the power production of wind farms, and the wakes created downwind from wind turbines. She has been called "the recognized expert on British offshore wind farms".[1] Educated in England, she has worked in Denmark, Scotland, and the US, where she is a Croll Fellow and professor in the Sibley School of Mechanical and Aerospace Engineering at Cornell University.