Extensive northern hemisphere continental glaciation begins at 280 ppm. Only a moron would believe that 300 ppm is good.Great link (that doesn't back up your prediction at all):You better prepare now for earth to cool, significantly...
Grand minimum predicted for 2050s sun cycle will cool Earth (news.com.au)
But it won’t stop the current trend of planetary warning, Lubin warns.
“The cooling effect of a grand minimum is only a fraction of the warming effect caused by the increasing concentration of carbon dioxide in the atmosphere,” a statement from the research team reads.
“After hundreds of thousands of years of CO2 levels never exceeding 300 parts per million in air, the concentration of the greenhouse gas is now over 400 parts per million, continuing a rise that began with the Industrial Revolution.”