David Pimentel
Professor of Insect Ecology
and Agricultural Sciences
Cornell University

on the topic:
Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks

Philip Brasher
Washington Correspondent for
the Des Moines Register

on the topic:
A Change is Coming...Or is it?

Robert Anex
Associate Director, Office of Biorenewables Programs;
Associate Professor, Department of Agricultural & Biosystems Engineering
Iowa State University

on the topic:
Biofuels, Oil, and Hunger

Brian Crowe
Senior Program Planner
Iowa Office of Energy Independence

on the topic:
Energy Independence and Iowa

John Tyndall
Natural Resource Economics
Dept. of Natural Resource Ecology and Management
Iowa State University

on the topic:
Biofuels and the Environment