In a divided Congress that has trouble passing anything, can energy policy be an exception? The Senate is preparing to vote this week on a major piece of legislation designed to move the country toward using cleaner sources of energy. The sprawling bill binds together about 50 energy-related proposals and would touch nearly every part of the nation’s energy sector.

But critics are already calling the package a hodgepodge of modest steps at a time when the planet is careening toward dangerous levels of warming and more ambitious legislation is needed to wean the world’s biggest economy off polluting fossil fuels.

Lisa Murkowski (R-Alaska), chair of the Senate Energy and Natural Resources Committee, and Joe Manchin III (W.Va.), the committee’s ranking Democrat, introduced the 555-page measure Thursday with the hope of winning over the support of both Republicans and Democrats. Senate Majority Leader Mitch McConnell (R-Ky.), eager to bring it to the floor, signaled a vote could happen as early as this week.

The bill, dubbed the American Energy Innovation Act, isn’t specifically about climate change. The word “climate” appears only once in a two-page summary of the bill. But it does support some ways of slowing down the release of heat-trapping emissions.