Relax! Celebrate 400 PPM Of CO2! Bloomberg News features Climate Depot’s Morano: ‘The Earth has had many-times-higher levels of CO2 in the past. Americans should welcome the 400 ppm threshold. This means that plants are going to be happy, and this means that global-warming fearmongers are going to be proven wrong’

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NASA Moonwalker Harrison H. Schmitt & Prof. William Happer in WSJ: ‘Thanks to the single-minded demonization of this natural and essential atmospheric gas by advocates of government control of energy production, the conventional wisdom about carbon dioxide is that it is a dangerous pollutant. That’s simply not the case’ 

The effectiveness of CO2 as a greenhouse gas becomes ever more marginal with greater concentration — ‘The effectiveness of CO2 as a greenhouse gas diminishes logarithmically with increasing concentration and from the current level of ~390 ppmv, (parts per million by volume). Accordingly only ~5% of the effectiveness of CO2 as a greenhouse gas remains beyond the current level’


Warmists Claim: ‘Carbon dioxide and global warming: More is NOT better’ – ‘Then there’s the problem of rate. Sure, CO2 levels were higher in the past. But it’s not just the amount the counts, it’s how quickly it rose to that amount. Solid research done over the past few years has shown that the current rate of increase of CO2 in the atmosphere is entirely unprecedented over at least the past 11,000 years (and almost certainly much farther back than that). There were times in the past when the amount was higher, but it took millennia to reach those levels. We’re about to blow through the record like a rocket, and we’ve done it in a mere century.’

Rebuttal: Princeton physicist Dr. William Happer responds to alleged ‘rapid change’ argument:

Happer: ‘The argument that plants and animals cannot adapt to rapid change is largely baloney. There are enormous changes in temperature from summer to winter, in humidity from wet seasons to dry season, from very alkaline, warm ocean surface water in the tropics to cold, much less alkaline deep waters, to nearly pH neutral waters off landmasses bordering the arctic. As I have measured many times, simply walking out of a Princeton lecture hall to the open air, can change the CO2 concentration from 1200 ppm in the hall to 450 ppm outside. The same transit commonly goes with a temperature change of 10 C or more.  Greenhouse operators change CO2 concentrations from ambient, say 400 ppm, to 2000 ppm in 15 minutes — with absolutely no ill effects to the plants. The CO2 concentrations in a corn field can change from under 300 ppm or less at noon to 600 ppm or more at midnight, depending on