I have often wondered if the CO2 is really the most dangerous ecological experiment we are applying to this planet at this point in history. It is, after all, a plant nutrient that eventually goes away over time. 3.5 billion years ago this planet was covered with methane and O2 was a trace poison to most existing life, until plant forms devoured the carbon and farted out O2 we all love. We are doing many kinds of "terraforming" on a planet wide scale, and CO2 is but one example.

But to effectively retool our economy requires a non-CO2 source of abundant power. I am not sure that nuclear as we know it now would fit the bill, because of the various construction and infrastructure costs. Using less is probably more practical then re-inventing nuclear power (iteratively improving nuclear power would still have value).

Trying to stay positive here, I hope:

- with solar capacity doubling every 30 months (1), once our electricity needs are met, we use excess capacity to produce hydrogen.

- we displace most fossil fuel with a combination of biodiesel (algae), cellulosic ethanol, and hydrogen.

- we clean up all our radioactive waste stockpiles, and generate electricity, with traveling wave reactors.