The Chicago Climate Exchange (CCX), a marketplace for reducing and trading greenhouse gas emissions, has appointed Christine Todd Whitman, who served in the cabinet of President George W. Bush, as an independent director.

Whitman, who was administrator of the Environmental Protection Agency from 2001 to 2003, is a strong believer that economic success and environmental protection must go hand-in-hand. She actively promoted public-private partnerships and market-based programmes during her tenure.