Abstract
STEBBING1 has stated that the climate of West Africa was becoming increasingly drier, and that the Sahara was advancing southwards at an alarming rate. The ensuing controversy, which developed in the late 1930's, has been summarized by Jones2. During the past 50 or 100 years there has been a distinct degeneration of the vegetation in many parts of West Africa; but most workers considered this to be caused by human activity rather than by a change in climate and pointed out that there was no meteorological evidence for a progressive, rather than a cyclical, climatic change.
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References
Stebbing, E. P., Geog. J., 85, 506 (1935).
Jones, B., Geog. J., 91, 401 (1938).
Hopkins, B., J. Ecol. (in the press).
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HOPKINS, B. A Trend Towards a Longer Dry Season in South-western Nigeria. Nature 194, 861–862 (1962). https://doi.org/10.1038/194861b0
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DOI: https://doi.org/10.1038/194861b0
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