Are We Going to Be 100% Renewable?

"I think renewables are awesome. I'm excited for where they're going, but I agree with you that perhaps we're just too late," says CNN's John Sutter. "We have a lot of oil left in reserves, but it is going to get harder to dig it out," he adds. "Capitalism will ensure that renewables climb at least close to the same rate as fossil fuels are falling"