For example, an increase of 2-3 degrees for the past +200 years surely makes a big difference 'coz a 97 degrees during the summer of the 18th is certainly a lot more comfortable than the 100 degrees summer nowadays. As today's common saying goes: "the summers are getting hotter." How true is that phrase!

And evethough we humans may adapt to such changes on a short-term basis since we have air-cons, fans, & stay indoors more, a lot of other species can't & so they start going extinct by the numbers. But who cares?