For better or worse, is natural gas the new coal?

Now the No. 1 power source in the U.S., natural gas has been billed as a bridge to a future of alternative energy. But can it compete with wind and solar sources that have become cheaper and easier to install? It depends who you ask.

Now the No. 1 power source in the U.S., natural gas has been billed as a bridge to a future of alternative energy. But can it compete with wind and solar sources that have become cheaper and easier to install? It depends who you ask.