Climatologist Dr. Fred Singer: ‘Any warming observed during the past century appears to be trivially small and most likely economically beneficial’
The real threat to humanity comes not from any (trivial) greenhouse warming but from cooling periods creating food shortages and famines.
The burden of proof falls upon alarmists to demonstrate that this null hypothesis is not adequate to account for empirical climate data. In other words, alarmists must provide convincing observational evidence for anthropogenic climate change (ACC). They must do this by detailed comparison of the data with climate models. This is of course extremely difficult and virtually impossible since one cannot specify these natural influences precisely.
Policies to limit CO2 emissions are wasting resources that could better be used for genuine societal problems like public health. They are also counter-productive since CO2 promotes plant growth and crop yields, as shown by dozens of agricultural publications.