False Polyanna-ism is far, far worse than sober rational, scientific assessment!! Life isn't fair. Life isn't nice. Mother Nature doesn't give a Frig about h

False Polyanna-ism is far, far worse than sober rational, scientific assessment!! Life isn't fair. Life isn't nice. Mother Nature doesn't give a Frig about humans or you individually. We are expendable and NOT the center of the universe. See George Carlins "The Planet is Fine" because that's reality. Innovation takes time. 20 years minimum but 90% of all "ideas" NEVER make to reality because they are poorly thought-out "hopium" rather than science or engineering. Flying is NOTHING like this because this is primary nature rather than technology or engineering. Seriously how is that not clear?! In terms of technology: look up "entropy" and the energy required to overcome it. CO2 in the air already is at maximal entropy so it takes ENORMOUS amounts of energy to grab at scarce CO2 molecules diluted among a see of N2/O2. http://www.chem1.com/acad/webtext/thermeq/TE4B.html http://www.chem1.com/acad/webtext/thermeq/TE4B.html The Gibbs energy of dilution has to be provided to reverse and extract the CO2. The C2/C1 ratio is literally 420 ppm or 420/1,000,000. This is why the ONLY practical means is to get the CO2 BEFORE it's in the atmosphere. Whatever is already there will take a very long time (700 years apparently - but where are you REALISTICALLY going to the energy for the duration - if you say Green, you are full of shit because you are ignoring the actual supply chains for making that Green technology and whether any of that breaks even, energy-wise). The most effective solution is plants; it will still take dozens if not hundreds of millennia.