Climate change stirs up air pressure
Nathan Gillett of the University of Victoria in Canada and colleagues found that air pressure has decreased on average over the Arctic, Antarctic and North Pacific during the past five decades. In contrast, above the North Atlantic, southern Europe and North Africa, pressure has increased.
These changes in atmospheric pressure could have important consequences for future climate, owing to influences on patterns of rainfall, air temperatures, winds and storminess. This means that current climate predictions — which currently fail to take account of regional effects of air pressure changes — may be unreliable.
© SciDev.Net 2003
Link to research paper in Nature