His lecture will focus on outstanding examples of environmental photojournalism, including behind-the-scenes details on the creation of the April 2010 NGM freshwater issue. A picture editor with nearly 30 years experience at National Geographic and 14 years as a faculty member at the Missouri Photo Workshop, Dimick will show outstanding recent environmental photography from the pages of the magazine and discuss how photographers interested in the environment can produce insightful reports.

He has guided photo coverage on many environmental stories including: Greenland (2010), end of cheap food (2009), Canadian oil sands (2009), Australian drought (2009), Our Good Earth: Soils (2008), Carbon Crisis (2007), melting ice (2007), and climate change (2004).

Dimick orchestrates the annual Aspen Environment Forum co-sponsored with the Aspen Institute and regularly presents slide show lectures on energy, climate, and the environment. Recent audiences have included England's University of Nottingham, Mountainfilm at Telluride, MIT's Earth System Initiative, Yale Institute for Biospheric Studies,  Goldman Sachs Leadership Forum, the World Conservation Congress, and U.S. Federal Reserve Bank.

An Oregon native, he holds degrees from the University of Wisconsin-Madison and Oregon State University. Before joining National Geographic, he was a newspaper photographer and editor in Oregon, Washington, and at The Courier-Journal of Louisville, KY. He and his family live in Arlington, VA.