My assumption is that anyone putting forth arguments that don't begin to hold even the slightest bit of water to bend over backwards to deny the very real importance and nature of climate change is a climate change denier, in reality, and in my experience those are almost without exception conservatives. But, yes, you are right: there are a fairly small number of liberals out there who deny climate science. You could be one of those
And it isn't pomposity, it is impatience borne of thirty years of dealing with an endless stream of bogus arguments that leaves me with little patience. Sunspots, tilt of the earth's axis, fraud, chemtrails, pauses, I've heard it all and now I don't much feel like trying to patiently teach people who I am pretty sure (again, long experience) have no interest in facts or learning and only care about spewing a politically driven set of consclusions supported by ever more bogus arguments.
So, apologies if you're the rare one who actually is interested in facts and learning something
On the off chance, anomalies refers to deviation from the historical average, not the historical trend. Thus, if the reference average is taken over a period of time, often the whole record in question. Here the reference period refers to the beginning of the particular resolution of satellite data which was for the late 1980s and 1990/ for tat particular cell of rather map for this time of year. This, a positive anomaly means that the temperature right now is higher that the average over that reference period for early September. (I didn't see the temporal resolution). The fact that the entire map of the planet is positive means that the average overall has increased (e.g., the oceans have warmed, which we knew). Thus, that map shows how much warmer the oceans are compared to historical reference (which in this case is higher than historical) pre warming. Long story short, without global warming the ocean temperatures would almost certainly be colder and colder means weaker hurricanes. That's a pretty well described relationship
QED
I didn't lay all that out in afraid because I figured Bo knew all that stuff. My bad.