Rep. Doug LaMalfa (R-CA) questioned witnesses at a House Transportation Committee about the Infrastructure Investment and Jobs Act late last month.
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‘What Percent Of Our Atmosphere Is CO2?’: Doug LaMalfa Stumps Entire Panel With Climate Questions
Like some congressman once said, “My mind is made up. Don’t try to confuse me with the facts.”
Most people don’t know that CO2 is 0.04 % of the atmosphere, especially politicians. Nonetheless, there is great clamor among the political group and various activists to reduce CO2 emissions. Well, to what level? Nobody is saying. To reduce CO2 from 0.04 % to say 0.03% of the atmosphere, 55,000,000,000 metric tons of CO2 would have to be removed. But why would we do this? Plants would die at somewhere between 0.015% and 0.020%. A few reports on the effect of CO2 on plant life suggest that plants thrive best between 0.12 % and 0.15 %. In other words, we live in a CO2 starved world.
Re: Plants would die somewhere between 150 ppm and 200 ppm
I have read that during the last glacial maximum – about 20,000 years ago – CO2 dropped to 175 ppm.
I am not sure how they measured that. Do we have ice cores that old? Maybe wood or plant life from that era?
Regardless, we NEVER want to experiment with how LOW we can go before causing a global catastrophe.
Most current Hawaii data is 416 to 422 Parts Per Million. The measurement fluctuates between winter and summer due to agriculture and natural plant and tree growth and ocean temperature.
Expressed as a percentage: 0.0416% to 0.0422%
Verbally – rounded down, four one hundredths of one percent.