That the overall temp is changing, and whether man is responsible for it or not, are two different questions.
I like to see how quick people go from one to the other, in order to push the agenda: let's not do anything, surely it's not us, let's not change our processes. The head a bit deeper in the sand, please.
There are wayyyy too many studies to the effect that the overall temp is changing the last 50-100 years. I believe this is now undisputed. It was questioned 10-20 years ago (it seems by entities that could lose from changing the way we f**k the planet). But now it's game over. Another study just yesterday from the 45th north, with TONS of precise data from all over north America, and it was +1.4C, over 60 years. Now this doesn't say exactly 1.4 across the board, it said on the average, with a few places only .5, and others (mostly further north) at +2. With more variability than before.
Now, I'm not a scientist, but it seems impossible that such a drastic change, whether man-helped or not, would not have an impact on overall wind patterns. Just plain impossible. Temp and variability are two major factors that drive (no pun) wind patterns.
And I don't care about what others say: in the early-mid 80s on summer months, when I was young and we'd feel like cruising and sailing at Balmoral, we wouldn't wonder about the wind. It was gonna be NE and on-shore, unless a S-change. The mates would come from far away, because they were never be upset about the wind - I know that for a fact, 'coz there were whingers, and I'd remember. We'd sail on a NEer, that's all no questions asked (and perhaps a bit of perv, as we was young and immature).
There are a lots of non-NE now, even in the midst of summer. I don't go there anymore - I'm too old