In reply to Phil1919:
> Interesting to see how painful the process is to first acknowledge and then act on. China and India seem to be waking up to it largely because of the polution and smogs that are becoming the norm.
Think you might be confusing pollution and smog with CO2.
Smog is caused by dust, loess, soot, smoke, diesel particulates, industrial output, CO, NO2 and SO2, very common in winter high pressure zones in Beijing, India, LA, Paris etc, or Indonesia from forest-burning. It was particularly bad during the last ice age (dust that is).
CO2 is a beneficial trace gas in the atmosphere on which all plant life depends for prosperity (aka. photosynthesis). During the last ice age, CO2 dropped so low below 200 ppm that plant life almost ceased.
The optimum CO2 concentration in Dutch and Spanish greenhouses is 700-1000 ppm. Royal Navy submarines regularly enjoy much greater concentrations with no ill-effect.
The change from 300 or 350 to 400 ppm CO2 is inadequate to explain any climate effect.
Even for the tiny part of the increase that is due to man, and despite the prophets of doom, temperature in recent times has only increased 0.4 degrees Centigrade, significantly less than what the warmist models suggest, even if they knew what the mechanism was, or why the temperature has changed 0.4.
Bear in mind water vapour makes up 95% of all greenhouse gas effect in the atmosphere, CO2 is only 3.6%.
Man-made CO2 is only 0.12% of greenhouse effect - if we understood how it worked.
The concentration of CO2 in the atmosphere is 0.04%.
CO2 could triple to 1000 ppm with no additional discernible absorption-emission.
Carbon dioxide is not a pollutant.
CO2 is the gas of life.