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Peter Howes's avatar

I agree, great summary . . . however paragraph 3 « Since methane makes up 0.04% of earth's atmosphere, this theory is debatable » — carbon dioxide, CO₂ is ~0.04% (~420 parts per million by volume) and methane CH₄ is 0.00017% (1.7 parts per million by volume) — even more debatable !

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Stephen Heins's avatar

Excellent review, Ed. I want to send you the photo of Prince Charles and his cow mask invention.

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