Historical Air Pressure Data

[SuttonStorm]

In these days of "warming trends" and the general consensus that greenhouse gasses are involved in climate change, and in particular temperature, has there been any study that looks at the trends in air pressure over the years?

I know it is a very simplisitic view, and I appologise to those purists who will want to jump on it, but GENERALLY, our geographical position means lower pressure = more wind and rain (from an Atlantic-type direction) and higher pressure = more settled, clearer weather with more extremes in temperature, and a more Continental feed.

In addition to the recorded rise in temperatures (more extereme in some areas than others), has there been any significant alteration to the pressure trends at all? If so, are these indicative of a change in weather patterns?

A few questions there I know, but I hope someone will be able to answer some of it! :o

SS