Covers how ecological ideas and principles underlie both the problems and solutions of multiple environmental issues. Ecology of environmental concerns ranging from endangered species to global carbon cycling will be reviewed, including perspectives from physiological, behavioral, population, community and ecosystem ecology. Fulfills intermediate natural science requirement for Environmental Studies major. Recommended prerequisites: ENVS 1000 and a course in introductory statistics and two courses in introductory biology or physical geography. Same as EBIO 2040 and EBIO 2640.