Related by context. Frequent words. (Click for all words.) 48 Rep. Emanuel Cleaver 44 atmospheric 38 Rep. Dennis Kucinich 38 Sen. Claire McCaskill 37 Inhofe 36 Congressman Dennis Kucinich 36 Claire McCaskill 36 Rep. Dick Gephardt 35 Rep. Ike Skelton 35 Rep. Bruce Braley 35 congressman 34 Roy Blunt R 34 Dennis Kucinich 34 Senator Evan Bayh 34 Sen. George Voinovich 34 Senator Byron Dorgan 33 senator 33 Senator Sam Brownback 33 Sen. Barbara Boxer 33 Sen. Sam Brownback 33 Kucinich 33 Senator Chuck Hagel 33 Senator Jay Rockefeller 32 Sen. Tom Harkin 32 Senator Chuck Grassley 32 Rep. Maxine Waters 32 Richard Gephardt 32 atmospheric gases 32 Rep. Marcy Kaptur 31 congresswoman 31 Senator Tom Harkin 31 atmospheres 31 Rep. Tom Tancredo 31 Sens. Barbara Boxer 31 presidential nominee 31 atmosphere 31 superheated 31 Rep. Michele Bachmann 31 Sen. Joe Biden 31 Rep. Stephanie Tubbs 31 Sen. Jay Rockefeller 31 enveloping 31 presidential hopeful 30 Sen. Jim Bunning 30 Senator Rick Santorum 30 Rep. Steve Kagen 30 Sen. Evan Bayh 30 Senator Arlen Specter 30 presidential candidate 30 Senator Hillary Clinton 30 Senator Barbara Boxer 30 Congresswoman 30 Christopher Dodd 30 Dick Gephardt 30 Sen. Blanche Lincoln 30 Tubbs Jones 30 Sen. Mike DeWine 30 Senator Russ Feingold 30 Sen. Hillary Clinton 29 Voinovich 29 Barack Obama D-Ill. 29 Sen. Harry Reid 29 Sen. Charles Grassley 29 Sen. 29 Gov. Tom Vilsack 29 Russell Feingold 29 carbon dioxide 29 gases 29 Bernie Sanders 29 House Speaker Nancy 29 Rep. Connie Mack 29 Barack Obama 29 Rep. Jan Schakowsky 28 Gephardt 28 Barack Obama D Ill 28 greenhouse gases 28 Rep. Jay Inslee 28 Joe Sestak 28 sulfur dioxide 28 Sen. Chuck Hagel 28 Atmosphere 28 ionized 28 Sen. Chuck Schumer 28 Rep. Joe Sestak 27 Carbon dioxide 27 Boehner 27 John McCain R-Ariz. 27 John Boehner 27 Ted Strickland 27 journal Geophysical Research 27 airborne particles 27 Sen. Debbie Stabenow 27 Carl Levin 27 Sen. Arlen Specter 27 McCain 27 ozone 27 presidential hopefuls 27 John Conyers 27 I. Lieberman 27 Wesley Clark 27 Cardin