Leroux, Astrology or science?

Meteorology, the science of the weather and of its prediction, has always been, both in the past and even more so in the present, the target of criticism and even jibes, the standard of its forecasting leaving much to be desired. In the words of one humorist among many, `Weather forecasting is a science which tells us about the weather we should have had !' (P. Bouvard). We can't really know what the weather will be like more than two or three days ahead, as many forecasters will confirm. But now, all this has been erased in a trice! Now, it is unhesitatingly claimed, we can predict weather and climate (which is the sum of weather) as far ahead as the year 2100, from our viewpoint a century earlier! Astrology or science?