"WASHINGTON -- While much of the nation fixates on picnics, parades, patriotic music — and perhaps even the Declaration of Independence — on this approaching Fourth of July holiday weekend, Gina McCarthy will be contemplating smog and soot.

She will be dotting the i's and crossing the final t's in preparation for a midweek lifting of the curtain on the Environmental Protection Agency's long-awaited rule designed to protect downwind states from upwind pollution."

Elizabeth McGowan reports for SolveClimate News July 1, 2011. [2]