Avital Binshtock, lifestyle editor, Sierra Magazine, editor, Sierra Club's "Green Life" Blog, San Francisco, Calif.
Scott Carlson, senior reporter, The Chronicle of Higher Education, Washington, D.C.
Benjamin Jakubowski, senior, Oberlin College, Oberlin, Ohio
It's back-to-school season and college kids have a lot on their minds: can you compost pizza? What's more sustainable: kegs or cans? Can you have a party with low-flush toilets? Ira Flatow and guests discuss how students and universities are making the college life greener.