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A Sunshade to help Southern Africa Cope with Climate Change?

Climate change is a global problem. But local actions are needed to reduce its impact. Specifically, southern African countries must consider what they can do to protect their interests in the face of growing threats to economies and welfare.

So consider the idea of having a giant sunshade over southern Africa. During the recent heatwave, it would have been wonderful. It could have saved lives and there would have been less evaporation from dams, reducing the impact of the current drought. Crops and livestock would have fared better.

Putting up a global sunshade is feasible, not fanciful. It has already been shown to be an option for California. But it is rarely talked about in polite scientific or policy conversation. This is because it would be geoengineering, a human intervention to alter the climate. Many people consider this to be a step too far. But this must change, not least because human action is already causing the climate to change.

Victoria Pickering


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