[Ernest_at_the_Beach]

Major point in the letter ....I am always focusing on the point:

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The fact is that CO2 is not a pollutant. CO2 is a colorless and odorless gas, exhaled at high concentrations by each of us, and a key component of the biosphere's life cycle. Plants do so much better with more CO2 that greenhouse operators often increase the CO2 concentrations by factors of three or four to get better growth. This is no surprise since plants and animals evolved when CO2 concentrations were about 10 times larger than they are today.

[Ernest_at_the_Beach]

Another point from the WSJ Opinion letter:

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Alarmism over climate is of great benefit to many, providing government funding for academic research and a reason for government bureaucracies to grow. Alarmism also offers an excuse for governments to raise taxes, taxpayer-funded subsidies for businesses that understand how to work the political system, and a lure for big donations to charitable foundations promising to save the planet.

[haroldeveryman]

Defining CO2 as a “pollutant” was a gimmick perpetrated to give the EPA the power to regulate fossil fuel emissions.