Photo by Shutterstock.

So let me get this straight. We recently found out that July was the hottest month on record.

Last week, James Hansen, the director of NASA's Goddard Institute for Space Studies and father of climate change science, wrote of the peer-reviewed research he just completed [PDF]: "For the extreme hot weather of the recent past, there is virtually no explanation other than climate change.”

And last month, Richard Muller, a University of California-Berkeley physics professor, MacArthur Fellow, and former climate change skeptic -- whose research was funded by the Koch brothers -- concluded that "global warming was real and that prior estimates of the rate of warming were correct. I'm now going a step further: Humans are almost entirely the cause."

The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited -- we are approaching a tipping point beyond which the opportunity to reverse the damage of CO2 emissions will disappear.

And what are we talking about in our presidential campaign? Obamaloney and Romney Hood.