The business of battling climate change: Ithaca, NY decarbonizes city with help from BlocPower

Every year, CNBC asks Disruptor 50 nominees whether their companies have a social or environmental mission; While most say that they do, few are actually making money. BlocPower and Footprint, both of which made the Disruptor 50 list for the first time this year, are the exception — turning a buck in the business of battling climate change. In this Disruptor 50 Summit panel, BlocPower co-founder and CEO Donnel Baird shares how his company is doing well by doing good with CNBC's Julia Boorstin.