“Sadly”??? Just why is this a sad thing? More temperate climates mean less energy expended on heating — that’s a good thing. Fewer people die in cold — that’s a good thing. Growing seasons are extended and there’s more arable land — that’s a good thing. If you compare the MWP and the little ice age, the former was a time of abundance and wealth, the latter a time of misery, starvation and death.
For me, warm is good, cold is bad.
Why is warming always believed to be bad or, in your words, a “sad” thing?
Well said, and there's more to it —
Even AlGore’s book shows most temperate regions (including the US) receiving higher average rainfalls.
And what is CO2, if not plant food?
Sounds to me like milder weather and more food. What's not to like?
>>Why is warming always believed to be bad or, in your words, a “sad” thing?<<
Because the scientific analysis so far have been pretty uniformly negative.