Sen. Barbara Boxer, D-Calif., called on coastal Republicans to join a currently all-Democratic effort to “wake up Congress” on climate change.

While the 18 members of the new Senate Climate Action Task Force, which aims to elevate the profile of climate change, announced Tuesday were all Democrats, few of the centrist lawmakers normally opposed to measures that restrict greenhouse gas regulations signed up. But Boxer argued it shouldn’t take full participation from Democrats to pass climate legislation.