> It's a much longer trend than 2012-2016
2012-2016 is not the period of warming, it is the period from which the warming trend changed into a cooling trend. Seen over the last century the warming trend is far longer, the most recent one starting somewhere in the beginning of the 70's until the mentioned 2012-2016 frame. After that a slight cooling period followed, taking down the temperature by 0.06°C/yr until 2022. 2022 was another warm year so if 2023 will be warm as well the cooling trend is most likely broken. These sort-time variations are not significant when discussing 'climate' - roughly defined as 'the weather trends over at least a 30 yr stretch' - but they do control what makes the news.
One question: why do you state is is ´conservatives' who claim that the warming trend was broken? You don't know whether those people were conservatives nor do I. It does not make sense - and is extremely counterproductive - to equate a person's stance on single issues like 'climate change' with their political affiliation since these issues should not in any way be connected to political ideology. If they are connected they are by definition suspect since ideology trumps objective reasoning. Either the climate changes - and it does, no question there - or it does not, independent on whether you or I vote for whatever party we choose. Allowing ideology to taint the discussion just turns off a large part of the populace no matter which ideology it happens to be. It is just plain stupid for climate change to be a 'progressive' cause, crime reduction to be a 'conservative' cause, etc. These issues should be pulled out of the ideological realm so that they can be discussed by everyone without accusations of -isms by 'either' side.