 Complete the following phrase:  Kirk R. Smith January 19, 1947June 15, 2020 was an American expert on the health and climate effects of household energy use in developing nations. He held a professorship in Global Environmental Health at the University of California, Berkeley, where his research focused on the relationships among environmental quality, health, resource use, climate, development, and policy in developing countries. Smith contributed a great deal to the Intergovernmental Panel on Climate Change IPCC, and the work of the IPCC including the contributions of many scientists was recognized by the joint award of the 