Related by context. Frequent words. (Click for all words.) 51 hydraulic fracturing 48 fracking 48 fracking fluids 47 hydrofracking 47 regulate greenhouse gases 46 biomonitoring 46 contaminate groundwater 46 fracking chemicals 46 Marcellus Shale formation 45 contaminate drinking 45 Pete Domenici RN.M. 44 Russ Feingold D Wis 44 enact 44 pollute groundwater 43 impose stricter 43 Sens. Mike Enzi 43 Hydraulic fracturing 42 reduce greenhouse gas 42 Renewable Fuels Standard 42 Renewable Electricity 42 sulfur dioxide nitrogen oxides 42 shale deposits 42 liquefied coal 42 additive MTBE 42 shale 41 Fracking 41 Outer Continental Shelf OCS 41 carbon sequestration 41 Barbara Boxer D Calif 41 renewable fuels 41 sulfur dioxide nitrogen oxide 41 Senator Jeff Bingaman 41 gasoline additive MTBE 41 regulate carbon dioxide 40 Secretary Ken Salazar 40 Clean Water Restoration 40 regulate greenhouse gas 40 Democratic Sens. Dianne 40 bed methane 40 contaminating groundwater 40 groundwater 40 Rep. Cynthia Lummis 40 Thomas R Wyo 40 heat trapping greenhouse gases 40 Renewable fuels 40 horizontal drilling 40 smokestack emissions 40 Neslin 40 DeGette 40 shale formations 39 regulate 39 total dissolved solids 39 Act TSCA 39 Clean Water Act 39 Jeff Bingaman DN.M. 39 reauthorize 39 Chairman Richard Pombo 39 drug reimportation 39 wilderness designation 39 categorical exclusions 39 Jeff Bingaman 39 Bingaman 39 regulating greenhouse gas 39 Great Lakes Compact 39 Safe Drinking Water 39 Renewable Portfolio Standards 39 Rep. Diana DeGette 39 Valle Vidal 39 Marcellus shale 38 Diana DeGette 38 Environmental Protection Agency 38 carbon dioxide sequestration 38 Waxman Markey bill 38 Marcellus Shale drilling 38 defund Planned Parenthood 38 spokeswoman Kendra Barkoff 38 polluted groundwater 38 Healthy Forests 38 reapportion 38 MTBE 38 fracking fluid 38 legislate 38 Otero Mesa 38 bioremediation 38 fracing 38 coalbed methane 38 EPSCoR 38 alternative fuels 38 Roan Plateau 38 fleetwide average 38 Saxby Chambliss R 38 Jon Kyl R Ariz 38 ANWR 38 CO2 sequestration 38 regulating greenhouse gases 38 geothermal biomass 38 sage grouse habitat 37 tailpipe standards 37 curbing carbon emissions 37 unanimous consent 37 Sens. Jeff Bingaman