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Hotspots of climate change impacts in Africa: Making sense of uncertainties
Date:5/6/2014

says Hermann Lotze-Campen, co-chair of PIK's research domain Climate Impacts and Vulnerability. "We have to live with uncertainties: we don't have perfect data about future impacts of climate change, but computer simulations can help to understand likelihoods and possible impacts. Climate change clearly threatens people's livelihoods and thus cannot be ignored. Based on likelihoods and values at stake, we have to make decisions now as we always do when we're building a dike or for instance pass regulations on flight safety."

Managing risks for planning adaptation

Likely impacts, such as more intensive drought periods in the Southern Sahel, clearly demand for developing coping strategies for croppers and herders, even if it remains uncertain how intense this change will be. On the contrary, there is only moderate risk of increased flooding in East Africa, but possibly with severe impacts especially in countries like Tanzania that are subject to severe floods already today. These must be evaluated case-by-case, judging options to increase resilience and possible damages.

Adaptation measures could include improved access to international agricultural markets to for instance sell cattle before droughts, insurance systems to balance increased variability in crop yields from one year to another, or water storage systems such as underground cisterns. "This study provides the people on the ground with information they can hopefully use to then decide what to do," says Lotze-Campen. "A continental scenario analysis like this one can never be a blueprint for adaptation, as it of course lacks the local expertise. Yet it can help to decide where to best put the limited resources in the countries most affected by climate change."


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Contact: Jonas Viering
press@pik-potsdam.de
49-331-288-2507
Potsdam Institute for Climate Impact Research (PIK)
Source:Eurekalert

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