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Observed climate trends and future projections for Africa. Dr. Joseph K. Kanyanga IPCC AR5 WG 1 Lead Author. Summary: for Africa. KEY MESSAGE 1 on Observed Climate trends over Africa It is evident that Africa’s climate has changed and physical impacts already felt :
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Observed climate trends and future projections for Africa Dr. Joseph K. Kanyanga IPCC AR5 WG 1 Lead Author
Summary: for Africa KEY MESSAGE 1 on Observed Climate trendsover Africa It is evident that Africa’s climate has changed and physical impacts already felt: Temperature increase both over land and ocean surfaces – Each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850. Increase in frequency and severity of extreme weather events especially during the last 30 to 60 years: floods and droughts. - At local level, this is manifest through sustained changes in onset, cessation and intensities.
Summary: for Africa KEY MESSAGE 2 on Observed Climate trendsover Africa It is extremely likely that human activities have been the dominant cause of the observed changes in climate (warming). - The climate changes corresponds to period of increase in GHG emissions (enhanced CO2 concentrations).
Summary: for Africa KEY MESSAGE 3 on Future Climate Projections over Africa Further climate change is inevitable in the coming decades.
Chapter 14: Climate Phenomena and their Relevance for Future Regional Climate Change
KEY MESSAGE 4 on Observed Trends & Future Climate Projections over Africa Versus Development Climate change poses a challenge for growth and development in Africa.