Alexandra Rempel is a building scientist in the Environmental Studies Program at the University of Oregon, where she studies passive solar heating and natural ventilation systems; she is also a sunspace designer and performance consultant. Recent projects include field monitoring and mathematical modeling of Pacific Northwest sunspaces, direct-gain spaces, and thermal siphon systems; natural ventilation designs and evaluations in university buildings; and investigations of cloud cover and tree shading implications for regional passive building practices. She holds a B.A. in Biochemistry from Harvard College, a Ph.D. in Biology from MIT, and an M.Arch. from the University of Oregon.