[Gaffer]

My personal thought is that if they can’t make that process cheaper than cracking oil into gas without some effing government subsidy like for ethanol, then they should STFU.

[UCANSEE2]

My personal thought is that they can take that ethanol and shove it up their rectum.

I am in the middle of tearing down every one of my small engines (weed wackers, leaf blowers, chain saws) to replace the fuel lines DUE TO ETHANOL.

[justlurking]

My personal thought is that if they can’t make that process cheaper than cracking oil into gas without some effing government subsidy like for ethanol, then they should STFU.

A lot of detail is left out:

1. What's the cost of manufacturing the catalyst? (it's nanotechnology)
2. Does the catalyst degrade over time? What's the estimated lifetime?
3. What's the required power in kilowatt hours, per unit of ethanol, including any distillation to remove the water?

I would think that it violates some law of physics to convert carbon dioxide and water back into a hydrocarbon, and use less energy than was yielded by the original combustion.

Otherwise, it wouldn't be difficult to build a perpetual motion machine.

[TexasGator]

How do you Crack oil into gas on Mars?

[alloysteel]

If anything, ethanol is an even MORE dangerous compound than carbon dioxide....

This is simply short-circuiting the process of photosynthesis.