 Complete the following phrase:  Dr. C. Vernon Cole 1922  August 30, 2013 was a soil scientist known primarily for his work on nutrient cycling in agroecosystems. He was a member of Working Group II of the Intergovernmental Panel on Climate Change IPCC Second Assessment report, and the lead author of Chapter 23 Agricultural Options for Mitigation of Greenhouse Gas Emissions. The IPCC was awarded the 