TOPEKA, Kan. (AP) — Kansas is suspending its work on a plan for complying with federal regulations meant to combat climate change by reducing carbon emissions from power plants. Governor Sam Brownback has signed legislation approved by the GOP-dominated Legislature to put the work on hold because of a U.S. Supreme Court ruling in February. The new law takes effect May 19 and is a response to the high court's 5-4 ruling staying the federal rules until legal challenges are resolved. Wyoming and Virginia have enacted similar measures. The Kansas law will prevent state agencies from conducting studies or doing other work for a carbon-emissions plan while the U.S. Supreme Court's stay is in effect. Brownback spokeswoman Eileen Hawley said Monday that the federal government is attempting an "unprecedented expansion" of its power.