If we have real - world
evidence that temperatures were warmer than today during most
of the past 10,000 years (and also during several interglacial warm periods during the past few million years), and if we also have real - world
evidence that human civilization thrived during these warmer temperatures and the warmer temperatures did not trigger so - called «tipping points» sending the planet into a climate
catastrophe, then we have very
little reason to believe that our presently and moderately warming temperatures are now poised to send the planet into a climate
catastrophe.
I'll argue that if you're one
of the ~ 3M persons living in the Ben Tre and Long An provinces
of Vietnam situated on the Mekong Delta, unsupported claims such as Lindzen's «The
evidence is that the increase in CO2 will lead to very
little warming, and that the connection
of this minimal warming (or even significant warming) to the purported
catastrophes is also minimal» is hardly a tight argument and is ethically extremely dubious, aimed as it is at paralyzing the public policy response necessary to protect those people at risk.