The Montgomery County Council recently adopted a similar resolution, as did Washington, D.C.
It's unclear what impact such votes have beyond the political. They do not put us back into the Paris deal, and Gov. Larry Hogan's environmental policies are already far more stringent on Maryland than the Paris accord would have been.
At least Rockville has not made the absurd claim the Montgomery County Council recently did - that they could negate the environmental impact of the Paris withdrawal in the air over Montgomery County. You can't make this stuff up, folks.