The Earth Sciences Library supports research and teaching both at graduate and undergraduate levels in Earth Sciences, Forestry, Environment, and Ecology and Evolutionary Biology. The collection contains materials in forestry, geology, botany, zoology, ecology, and natural history. Though there is some overlap, materials in environmental studies particularly in the area of health and the environment are generally collected by the Gerstein Science Information Centre, and materials in environmental policy are collected by the Robarts Library.