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CCAFS Bulletin Describes Toll of Heat Shocks on Economic Growth

3 September 2012: The September edition of the AgClim Letters, published by the Climate Change, Agriculture and Food Security Program (CCAFS), describes long-term effects of temperature shocks on economic growth, which is felt especially in poor countries. 

The author argues that heat shocks in poor countries have significant negative effects across numerous sectors, not only on immediate agricultural output levels. She also describes threshold impacts, temperatures above which certain plants cannot survive. The newsletter further describes the emergence over recent decades of a new class of extremely hot summers that represent over three standard deviations from the mean. The study is based on anomalous temperature patterns measured over 50 years in 125 countries.

The CCAFS AgClim Letters is a monthly analysis that introduces a key policy topic via an interesting recent paper on specific subject in the field of climate change, agriculture and food security. CCAFS is a programme of the Consultative Group on International Agricultural Research (CGIAR). [Publication: AgrClim Letters, September 2012]