No no.
It is obvious no scientist has ever considered the uncertainties involved in working with complex models ever before until these people started pointing them out.
In experimental science uncertainties are associated with measurement
of a quantity. Reading of my thermometer in my living room may have an
uncertainty in the range of 0.02--0.05 deg Celsius. Notwithstanding the
inherent limitation in my instrument I know what the most accurate
measurements of temperatures of boiling water and melting ice are
supposed to be. If needed I can determine if my instrument is reliable.
Based on climate modelling climate scientists told us further increase of
global temperature has to be capped at 1.5 deg by 2030 or something like
that. I have no idea what uncertainties are considered by scientists involved
in working with complex models. To assign an uncertainty to the global
temperature I have to know how it is defined first. Calling it the average or mean
temperature of the surface of Earth is too vague for me to figure out what its
magnitude of its uncertainty is like. We don't have to worry about uncertainty of
the temperature of GTA because a minor variation of local temp doesn't
really matter. But if for some reason we want to know what it is
we can expect that the daily average temperature of GTA that includes the
effect of the measured temperature as well as the temperature you feel
would most likely more uncertain than the temperature reading
taken from my thermometer. Try imagine if you can measure yearly average
or mean temperature inside Al Gore's mansion. You have to monitor temperature
in each and every room and in the backyard as well as the area near the swimming
pool. Assuming you obtain an temperature accurate to within 1.5 deg then try
imagine you proceed to measure mean or average temperature of the earth.
You have to monitor temperature variation across the globe from the North Pole
to Antarctica. Based on what you learned from practical science from high
school do you think your measurement will be accurate to within 1.5 deg?
As a scientist myself and like you I am inclined to believe climate scientists
have considered the uncertainties associated with global temperature. But
I have no idea who those scientists are. To this day I am still trying to dig out
from literature what the exact definition of global temperature is and how
or whether its uncertainties are determined.
It's like how no scientist ever understood the limitations of PCR until the "COVID-19 is a hoax" people pointed them out.
