Clark Row is an environmental scientist, forester, and economist. For nearly 25 years he worked as a research forester and economist for USDA Forest Service, leaving as head of a unit developing national program and policy evaluation methods. At the Southern Forest Experiment Station his research included the economics of managing all types of forests and the measurement, valuation, and marketing of forest products. After transferring to the Washington Office of the Forest Service as an administrator, he conducted special projects on economic guidelines for forest planning, wilderness evaluation, research planning, pesticide use and toxic substances, road construction, among others.

A consultant in recent decades, Dr. Row has specialized in relationships between land areas and global climate change. He has worked for public agencies, Indian tribes, nonprofit organizations, and industries. In recent years he has been a consultant to the US Environmental Protection Agency, working on issues involving the US Inventory of Greenhouse Gas Emissions.

Clark has degrees in botany, forestry, and economics from Yale, Duke, and Tulane respectively. His first publication was on forest fires on the Black Hills National Forest 56 years ago as a teenager, and his most recent work was a report on forest and peat fires in Southeast Asia. Clark is a member of the United Nations Intergovernmental Panel on Climate Change (IPCC), both as a US representative and later as a volunteer lead author. He shared, with many, many other scientists and Al Gore, the 2007 Nobel Peace Prize.