This is the first in a series of online lectures about green chemistry. These are part of an online curriculum initiative in green science being developed at Carnegie Mellon University's Institute for Green Science. This first lecture is delivered by Terry Collins, one of the leading thinkers in the field of green chemistry, and the founder of the Institute. The learning initiative is being developed with the support of the Heinz Endowments and The Johnson Family Foundation under the leadership of science author, documentary filmmaker and edutainment pioneer Chip Walter. For more of the demo visit: www.GreenScienceInstitute.net.