Actor Ed Norton Compares His 'Earth Hour' to March On Selma

"I think it's, it's a call to action. It's, it's, it's-, turning off the lights won't solve the problem, obviously. But in the same way that the, the march on Selma, Alabama was a symbolic gesture for the civil rights movement I think those who care about climal [sic] change, climate change and carbon mitigation - which is a global movement -- are, are trying to find ways to symbolically demonstrate the, the unity of purpose around the planet and, and really get our leadership to take action."