Fact-Check: is “global dimming” shielding us from catastrophe?

Claim: Global dimming (due to cooling by aerosols, as opposed to warming from greenhouse gases) is masking a large amount of warming (0.7-1.5°C), so if we started to reduce carbon emissions now we’d get a paradoxical catastrophic jump in global warming instead.

This is a companion discussion topic for the original entry at https://climatetippingpoints.info/2019/04/15/fact-check-is-global-dimming-shielding-us-from-catastrophe/