@Airstrip One News This whole climate scam is nothing more than a wealth and power transfer scam. Anybody who understands physics knows gases absorb along spectral lines and that the spectral lines for carbon dioxide are almost completely saturated by 12 feet off the ground, additional CO2 will slightly widen those lines but not terribly increase absorption.

The argument of Venus as a runaway greenhouse gas analog of Earth ignores a few significant facts about other differences between Venus and Earth. Venus is closer to the sun and so has a solar input of 2611 watts/square meter, Earth by contrast 1361 watts/square meter, so the solar input to Venus is nearly twice that of Earth. Second Venus's atmosphere is almost 100% carbon atmosphere, but if we burn all the accessible fossil fuels left on Earth, the CO2 concentration won't go above 800 parts per million, or less than .1%, third, Venus has an atmosphere 100% thicker than Earth's so even if Earth's atmosphere was 100% CO2, it still would only be 1% as thick as Venus, second Venus has other greenhouse gases, primarily sulfuric acid. The then the reason Venus has so much CO2 is not because of a runaway effect, it is because Venus has no life to capture CO2 into marine shells and no techtonic plates to subduct that captured carbon beneath the surface.

Carl Sagan was entertaining but he vastly oversimplified the science, and if we allow ourselves to be swayed by that oversimplification, then we doom ourselves to poverty and failure as a species, because, without sufficient wealth we will not develop the energy replacements we need to power civilization such as molten salt thorium breeder reactors or hydrogen fusion, and sorry but solar and wind will never get us there, and we will exhaust, albeit at a lower rate, the fossil fuels we can economically get at, and then we will starve to death.