So what that thermometers didn’t exist 140 years ago, that’s what tree rings and sheep entrails are for, silly infidel.
When the idolized stupid of the group become famous and lead their flock of stupid, the flock of stupid follow and believe. Reminds me of this...........https://www.youtube.com/watch?v=yp_l5ntikaU
Which is why Prof Mann faked the tree ring data.
Well even if there is no Global Warming, some fauna & flora are getting extinct. So I don’t think that humanity will live long if everything will be going that way
The first reliable thermometers were invented over 300 years ago in 1714 by Daniel Fahrenheit.