Permaculture Research Digest

Wednesday 9 July 2014

No till cropping cools the hottest days (#journal)

Preferential cooling of hot extremes from cropland albedo management

The projected increase in warm extremes associated with climate change is a major concern for society and represents a threat to humans and ecosystems. This study shows that heat wave impacts could be attenuated locally by increasing surface albedo through no-till farming. This is due to an identified asymmetric impact of surface albedo change on summer temperature distribution resulting in a much stronger influence on hot extremes than on mean temperatures. This finding has important implications for the development of sustainable land management strategies and for the design of climate-engineering measures acting upon high-impact climate extremes.

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