More immediate though is concern about a fairly drastic drop in solar activity which could have quite a dramatic effect fairly soon for us earthly mortals.
In short, whilst the earth may currently indeed be warming due to man made CO2 emmisions and the greenhouse effect, a much more powerful influence on the earths climate is the energy we receive from the sun (along with the long term cycles of the earths orbit, wobble, precession etc) which seems to have played a major role in past ice ages (well, we are technically just in an interglacial period of an ongoing ice age).
Sun spot analysis is not some woo woo astrology type thing - it is a pretty clear science, with the 11 year cycle of the sun showing more sun spots at solar maximum (when the sun is very active) and fewer at solar minimum well documented (the spots themselves being the magnetic holes punched in the surface of the sun by its own eruptions). A too-active sun can threaten us with solar storms, knocking out telecommunications... but the immediate problem is the opposite, with sun activity it's lowest for at least 100 years and us now hitting the solar minimum of the cycle - which if it doesn't pull out of could lead us into another Maunder Minimum, famously linked to the Little Ice Age of c1640-1720.
On a larger scale, this cycle has led to the fall of empires~:
And it interesting to note that since this trend in the solar state has become clearer, the FBI raided a sun observatory, locking down an entire town and rather oddly blaming a janitor for downloading child porn (I kid you not):
This wasn't an isolated case:
I'm not a tinfoil hat wearing conspiracy theorist but I do think it's possible that the idea of a rapid cooling of the earth over the next 2 years triggering massive crop failures and famine could be getting kept out of the headlines.
Also, the weaking of the overall heliospehere (the area where solar winds cover our solar system, buffeting out much cosmic rays) is another problem - the earth is in this case bombarded with far more interstellar cosmic forces than usual and the result is usually increased earthquakes and volcanic activity. Krakatoa and Etna anybody??
For those of us who believe that human civilizations may have existed many eons before the 4000BC mark, the question always is - what mighty cycle comes along to knock them down periodically and set us back to square one?
An interesting one this, and I only post it here because of the complete lack of coverage of this subject in the main stream media - which jumps on any opportunity to advance the "warming" narrative.