Gil Sperling ’77, senior advisor for policy and programs at the U.S. Department of Energy, noted the urgency of creating a curriculum steeped in sustainability theory and practice. “We need to create incentives for teachers to take risks,” he said. “We’re at a tipping point [with climate change]. We do not have the luxury of open-ended debate. I've had 30 years [to work on this issue.] The kids graduating today don’t have that luxury.”