@hightor,
Ya know, some guy, named Lovelace, as I recall, has proposed a so-called "Gaia hypothesis," that has been adopted by some highly respected scientists like Lynn Margulis.
Put kinda simply, the thesis seems to be that the entire planet, along with every organism on it, is one, big, unified "system" that works in concert to be self-regulating, self-correcting, and self-sustaining.
This talk about positive versus negative feedback can also be "explained" in terms of this theory, I suppose. According to this thesis, if temperatures rise, then corresponding and "correcting" events will occur else to maintain a "planetary homeostasis." This all appears to be a matter of speculative, unproven "faith" to me, but let's leave that aside.
(Over)simplified, one theory seems to be that if surface air temperatures rise, then more water will evaporate into the atmosphere, which will result in more cloud cover, which will serve to offset and reduce the surface temperatures. This is so-called "negative feedback."
The alarmists claim that more water vapor will only intensely exacerbate the warming, with catastrophe resulting.
"Science" seems to be unable to understand, explain, or predict which, if either, of these opposite scenarios will occur. So far, however, the long-predicted catastrophic consequences have failed to materialize.
There are other predicted "negative feedbacks" to be considered too. For example, one line of reasoning is that if more CO2 is in the atmosphere, then plants will just use the extra CO2 to convert it to growth via photosynthesis, and that will serve to "self-regulate" the amount of CO2.