Wall Street goes all in on climate policy

Large U.S. financial firms are putting their deep pockets and political clout behind alternative energy, in a key stamp of approval from companies that have traditionally funneled money into fossil fuels.

In a statement Monday, six companies, including the four largest U.S. banks, pledged to cooperate to accelerate investment in renewable energy. They called for governments to help push clean power sources and combat "significant" economic risks from climate change ahead of critical private and public sector talks at the Sustainable Innovation Forum in December. 

Wall Street goes all in on climate policy