U.S. National Academy of Sciences labels as “settled facts” that “the Earth system is warming and that much of this warming is very likely due to human activities”

from Climate Progress. 

The report is a typical NAS product, which means it is uber-conservative from a scientific perspective, much like the IPCC.  So that means whenever it actual makes a strong assertion, like the ones above, it is doubly impressive.  Those who continue to attack what are essentially ’settled facts’ deserve the label that I and others have been using — ‘anti-scientific’.