Collins -- a leading GOP centrist -- has co-sponsored a version of cap-and-trade with Sen. Maria CantwellMaria CantwellReport: GOP lawmakers selling access to top staffers Bipartisan group demands answers on United incident Cohn backs modern version of Glass-Steagall: report MORE (D-Wash.) that would send three-fourths of the money from federal emissions permit auctions directly to consumers.
The architects of a competing climate plan -- Sens. John KerryJohn KerryEllison comments on Obama criticized as 'a stupid thing to say' 'Can you hear me now?' Trump team voices credible threat of force Obama to attend Pittsburgh Steelers owner's funeral MORE (D-Mass.), Lindsey GrahamLindsey GrahamRussian interference looms over European elections Graham: I’m ‘all in’ for Trump Graham: US on a collision course with North Korea MORE (R-S.C.) and Joe Lieberman (I-Conn.) -- have said they will include elements of the Cantwell-Collins approach, but have not provided specifics. Kerry, Graham and Lieberman plan to unveil their bill next week.
There are several differences between the approaches.
Cantwell and Collins would cap carbon from "upstream" sectors like oil producers and coal mining companies.
The Kerry-Graham-Lieberman measure is under development, but they plan to create a cap-and-trade program applied to electric utilities that would later fold in other types of industrial plants.
Collins spoke Tuesday at an energy and climate forum hosted by the National Journal Group.