This event, which will be held from 6:30 to 9 p.m., is sponsored by NESACS, the Town of Barnstable, the Cape Cod Commission, and PID Analyzers, LLC; it will be hosted by Jennifer Maclachlan and Dr. Jack Driscoll. The topic of this Cape Cod Science Café is Alternative Energy and Sustainability. The keynote speaker will be Prof. Daniel Nocera of M.I.T. There will be additional speakers from tSuffolk University and the Barnstable County Department of Health and Environment. Soft drinks and light refreshments will be provided. RSVP before April 24, 2011 to Jennifer Maclachlan <firstname.lastname@example.org>.