Working Document Series Open Access Aridity changes and its association with drought severity in Botswana J. Byakatonda · Piet K. Kenabathob · B.P. Parida Global warming is likely to increase climatic variability especially in semi arid areas. The variability is expected to be registered through changes in rainfall patterns and temperature trends, thus through changes in aridity and drought … RUF-37554 2016 CC BY 4.0 11 Apr 2018