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OpenLearn Create will be unavailable on Wednesday 18 March 2026 from 8am to 10am due to routine maintenance.
OpenLearn Create will be unavailable on Wednesday 18 March 2026 from 8am to 10am due to routine maintenance.
WASH: Context and Environment

WASH: Context and Environment

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Figure 2.2  Average annual rate of population change for the world and development groups, 1950–2100. (Note that more developed regions comprise Europe, Northern America, Australasia and Japan; less developed regions include Africa, Asia (except Japan), and Latin America; 49 countries, including Ethiopia, are defined by the United Nations as ‘least developed’.) (UNDESA, 2013)

 2.1  Trends and causes of population growth