No warmup here. I've stated that much of the research favoring "clean" energy makes extremely generous assumptions about the validity of the data and allows for overly confident assertions mainly used for marketing. We know a lot less about the environment than you think, and even with what we do know, we can say for sure that when you include supply, manufacture, transduction, etc. you really can't call any method for power generation "clean" with current tech. It's all empty promises of new potential tech to be seen if we milk the tax payer. Just people with degrees in the field making money on selling pipe dreams to the public, and helping officials pump taxes into their investments. That's "clean" energy in a paragraph. It doesn't exist.