WASHINGTON, DC - FEBRUARY 17: Michael Brune attends "Forward On Climate" Washington DC Rally on February 17, 2013 in Washington, DC. (Photo by Leigh Vogel/Getty Images)
WASHINGTON, DC - FEBRUARY 17: Michael Brune attends "Forward On Climate" Washington DC Rally on February 17, 2013 in Washington, DC. (Photo by Leigh Vogel/Getty Images)