Maryland's two Republican House members got low marks for their votes on environmental issues in the latest scorecard from the national League of Conservation Voters, which called the GOP-dominated House session last year the "most anti-environmental" in the chamber's history.

Freshman Rep. Andy Harris, representing some Baltimore suburbs and the Eastern Shore, and 10th-termer Roscoe Bartlett, whose district stretches from the B'more 'burbs to western Maryland, voted favorably on environmental issues before the House just 9 percent of the time, according to the league.

Maryland's Democratic lawmakers, meanwhile, all garnered high scores for voting "green," with three doing so 100 percent of the time -- the state's two senators, Barbara A. Mikulski and Benjamin L. Cardin, and Rep. Christopher Van Hollen representing Montgomery County.  Other Baltimore area Reps. Elijah Cummings and John Sarbanes landed 97 percent scores, while Dutch Ruppersberger voted with the league 89 percent. 

The league rated members of Congress on 11 Senate and 35 House votes.

“We applaud those members of the Maryland delegation who opposed the countless attacks on vital public health and environmental protections in 2011, such as members Chris Van Hollen, Elijah Cummings and Minority Whip Steny Hoyer,” said Karla Raettig, executive director of the Maryland chapter of the conservation voters league. “However, it's deeply disappointing that members Harris and Bartlett failed to step up and protect the health and well-being of Marylanders.”

To see the full scorecard, go here.