claim: (2009) have demonstrated recently  – the upper troposphere (the only place where adding CO2 to the  atmosphere could make any difference to temperature) is considerably  drier than the models are tuned to expect."
evidence: In the U.S., about 28% of the population of 105 million became infected, and 500,000 to 675,000 died (0.48 to 0.64 percent of the population).