As President Obama hosts the world's 17 largest economies to discuss a new desperately-needed global binding treaty on climate change, the oil, coal and gas companies are in overdrive trying to undermine the process and maintain their profits. [1]

And Avaaz.org is calling out the worst of the bunch, ExxonMobil Corp., in a new commercial they want to run on CNN.

The video plays off an ExxonMobil ad [2] that might look familiar given its heavy rotation on the major networks lately. Here's a screenshot of the original ad - and below that is the much more reality-based Avaaz version:

If you want to see this ad run on CNN you might consider throwing a couple of bucks Avaaz's way [1] to help with the ad buy - think of it as offsetting the big polluter's hot air.