From the master of doing well while doing good, Bill Gates in a The Atlantic interview

“Yes, the government will be somewhat inept,” he said brusquely, swatting aside one objection as a trivial statement of the obvious. “But the private sector is in general inept. How many companies do venture capitalists invest in that go poorly? By far most of them.”

He wants human beings to invent their way out of the coming collision with planetary climate change, accelerating a transition to new forms of energy that might normally take a century or more. To head off a rise in average global temperatures of 2 degrees Celsius above preindustrial levels—the goal set by international agreement—Gates believes that by 2050, wealthy nations like China and the United States, the most prodigious belchers of greenhouse gases, must be adding no more carbon to the skies.

The push is the R&D,” he said............. . “The pull is the carbon tax.”

On why the free market won’t develop new forms of energy fast enough:

Well, there’s no fortune to be made. Even if you have a new energy source that costs the same as today’s and emits no CO2, it will be uncertain compared with what’s tried-and-true and already operating at unbelievable scale and has gotten through all the regulatory problems, like “Okay, what do you do with coal ash?” and “How do you guarantee something is safe?” Without a substantial carbon tax, there’s no incentive for innovators or plant buyers to switch.

In this poster's opinion politicians who mouth concern of the national debt's effect on the follow on generations are the same ones that would cosign those generations to a dying planet fouled by fossil fuel byproducts.

Link to full interview:

http://www.theatlantic.com/magazine/archive/2015/11/we-need-an-energy-miracle/407881/