What if the effects are major? Then what?
Effects are gonna depend on a RELIABLE forecast for 2100.. If one cannot be made that doesn't crash and burn just a couple decades later -- it's speculation --- not science.. ALL scientists agree on the basic power of CO2.. Without the super hyped "catastrophic" parts of GW theory, the number is about 1.1 DegC for every DOUBLING of CO2 in the atmos.. That's about what we've observed... And NOTE that formulation says that you need TWICE as CO2 to get the NEXT 1.1 DegC rise..
So we have not even DOUBLED since the beginnings of the Ind Age. We'll hit THAT in 2030 or 40. Another doubling would take TWICE AS emission.. And is not likely until CLOSE to 2100..
The numbers people are QUOTING to "play on your fears" would require a 600% increase in atmos CO2 (and methane) somewhere between here and 2100... NOT GONNA ******* HAPPEN...
Here's the irony of peeing your pants about a DegreeC of warming in a lifetime.. Those predictions of NYC and Miami DISSAPPEARING by 2100??? Relies on a complete meltdown of Antarctica and Greenland.. Mostly Antarctica... And the FUN PART is ---
It was only about 10 years ago, maybe less, that polar ice cap scientists VERIFIED that the part of West Antarctica that was losing coastal glacial ice the worst WAS SITTING ON A LARGE SERIES OF ACTIVE VOLCANIC RIFTS....
SO -- go SPEND a $Trill, **** up everybody's standard of living, make AOC your climate social justice czar --
and find out a few years later that there are VOLCANIC surface eruptions NOW in Antarctica and NYC and Miami need to be evacuated in a manner of months..
Moral of the story is -- preparedness is a good thing.. Making policy off of hyperventilated and massively exaggerated scientific theories and misused stats only allows demagogues in the USA and UN to seize the economy, FRIGHTEN YOUR CHILDREN to DEATH, and have their way with it and fund totally UNRELATED socialist fantasies...