Studies of climate change typically consider measurements or predictions of temperature over
extended periods of time. Climate, however, is much more than temperature. Over the oceans,
changes in wind speed and the surface gravity waves generated by such winds play an
important role. We used a 23-year database of calibrated and validated satellite altimeter
measurements to investigate global changes in oceanic wind speed and wave height over this
period. We find a general global trend of increasing values of wind speed and, to a lesser
degree, wave height, over this period. The rate of increase is greater for extreme events as
compared to the mean condition.