GOP accused of holding public health hostage with EPA rider

"These are not political issues; these are science-based issues," added Donald Hoppert, director of government relations for the American Public Health Association. "EPA scientific findings should not be overturned by Congress."

In response to Republican concerns that environmental regulations are hurting the economy and costing jobs, Hoppert said EPA data show that the Clean Air Act in 2010 prevented more than 160,000 cases of premature mortality, 130,000 heart attacks and millions of lost workdays.

The two officials also said they're gearing up for a fight over the 2012 budget as well. 

And they vowed to continue to reach out to the four Senate Democrats who voted Wednesday in favor of a Republican amendment to permanently prevent the EPA from regulating greenhouse gas emissions: Sens. Mary LandrieuMary Loretta LandrieuBottom line A decade of making a difference: Senate Caucus on Foster Youth Congress needs to work to combat the poverty, abuse and neglect issues that children face MORE (La.), Joe ManchinJoseph (Joe) ManchinTrump nominee faces Senate hurdles to securing public lands post OVERNIGHT ENERGY: Watchdog accuses Commerce of holding up 'Sharpiegate' report | Climate change erases millennia of cooling: study | Senate nixes proposal limiting Energy Department's control on nuclear agency budget Senate nixes proposal limiting Energy Department's control on nuclear agency budget MORE (W.Va.), Mark PryorMark Lunsford PryorCoronavirus poses risks for Trump in 2020 Tom Cotton's only Democratic rival quits race in Arkansas Medicaid rollback looms for GOP senators in 2020 MORE (Ark.) and Ben Nelson (Neb.). The amendment failed.