I guess we have journalists to thank for some of this - but the same themes keep getting recycled.
Today's its climate instability due to methane hydrates and trapped methane in permafrost.
Its often hidden away that the Warmist campaigners require climate instability to make their wild predictions come about.
However the historical ( which means geological ) evidence for this suggests the opposite, that our climate is internally stable. ( All bets are off if the Sun increases / reduces its output ).
The truth is they don't know, but they won't be adding that to any iPhone apps...