Cutting air pollution in southern Africa could repay many times over
Environmental scientists Chris Malley, Kevin Hicks and Caroline Sawe say African countries could save billions by cutting air pollution and greenhouse gas emissions together. They wrote about two studies in an article for The Conversation.
Their first study, "Hidden assets", looks at 25 proven measures. In parts of southern Africa, each dollar spent could return about 26 US dollars in benefits, against about 16 dollars for child vaccination. Doing all 25 measures across southern Africa would cost about 11 billion dollars by 2035. The savings come from fewer hospital stays and less sick leave. The figures are estimates of the value of harm avoided, and the authors describe them as possible, not certain.