Chorus:
The ice age is coming, the sun's zoomin' in Meltdown expected, the wheat is growin' thin Engines stop running, but I have no fear Cause London is drownin', I, live by the river
Verse 3:
(London calling), yes, I was there, too And ya' know what they said? Well, some of it was true! (London calling) at the top of the dial And after all this, won't you give me a smile? (London calling)
If The Clash is not your thing, maybe R.E.M.'s It's the End of the World as We Know It (And I Feel Fine) fits the bill. Both tracks can be seen as dealing with the same subject matter and come to the same conclusion - The Clash wants you to give them a smile, R.E.M. feels fine.
In other words, stop it with the panic porn. Learn to adapt to the warmer climate as humans have done before, just like they adapted to an ice age where large parts of the continents were ice-covered. Use your head when confronted with statements of doom, check historical records and you'll quickly find there were worse droughts and more heatwaves about a century ago - which led to the Dust Bowl [3].
Take the ravages of the dust bowl as an example and imagine they had had access to the current crop of social networks and networking technology back then. There would have been similar predictions of doom - crops were failing, anf not just in the USA. Would those predictions have been justified given the development of the weather in the decades past the 40's? Clearly not.
What makes the current predictions of doom different from earlier ones? Is it the climate modelling which is used as base? Feed those models with (real - not 'corrected') data from before the dust bowl and see what they make of the next century.
[1] https://en.wikipedia.org/wiki/London_Calling_(song)
[2] https://en.wikipedia.org/wiki/It%27s_the_End_of_the_World_as...