Via Marc Ambinder, Gore will lay out "an unprecedented challenge" on energy and climate change and will set a national goal for a "clean energy future."

Who: Former Vice President Al Gore

What: A discussion on the future of America's energy needs

Where: D.A.R. Constitution Hall ­ 1776 D St., NW, Washington, DC

When: Thursday, July 17 at 12:00 p.m. EDT

I won't be able to go, which is a shame. I went to Gore's last speech at DAR, the atmosphere was electrifying.