Gray to head Chesapeake Bay cleanup board

District Mayor Vincent Gray was chosen Monday to lead the group overseeing the clean up of the Chesapeake Bay as area officials consider applying a “cap-and-trade” approach to those anti-pollution efforts.

The Chesapeake Executive Council named Gray to succeed Lisa Jackson, the Environmental Protection Agency administrator who headed the council for the last two years. Gray promised to help states and localities find cost-effective ways to save the country’s largest estuary.