It's time to transition to 100% clean energy: the wind is now at our backs | Mark Ruffalo

Relying fully on clean energy is not only good for the environment, human health and the economy, it is also doable

The climate agreement reached in Paris is provoking a flurry of caveats, criticisms and cautions. Many of those criticisms are warranted and there's a lot of work ahead to make sure countries live up to their promises. But we should not miss a chance to celebrate a historic turning point.

World leaders finally made commitments to clean, renewable energy that will help to ensure a safer, healthier and more prosperous future for us all. The agreement signals that the age of fossil fuels is coming to a close, and the age of renewable energy is dawning.