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Originally Posted by KirkVining
Sure CO2 is natural, but so is sulfuric acid. A little of it in your stomach is ok for digesting food, but go have a glass and let me know how it works out. I am sure I will not be hearing from you anytime soon.
The problem is we are affecting the natural carbon cycle. CO2 is also a gas that has known harmful affects. It traps heat. Producing less of it is not an idea that has no merit.
Our ultimate solution is hydrogen fuel. When the oil runs out, if in running it out we do not destroy ourselves via war and global warming, it wil be our next fuel. Burning hydrogen does not produce any biproducts, as far as I know. Given that, why are we not putting greater reseach efforts into it?
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Hydrogen sucks as a fuel for transportation. It's not dense enough. You can liquify the stuff, and the energy density is still 1/10th of gasoline. Can you imagine the extra expense and weight involved with trying to contain liquid hydrogen? Not to mention it leaks like crazy. If you take the time to do the math, the process are way too inefficient to use hydrogen as an energy storage medium - better off using batteries.
Our ultimate (transportation) solution is renewable hydrocarbon fuels, like biodiesel. Growing it pulls CO2 from the atmosphere, and burning it returns it to the air for a net balance of zero.