With Keystone snub, Obama aims for more leverage on climate

Staff Writer
Columbus CEO

WASHINGTON (AP) — For years, President Barack Obama has chided Republicans and Democrats alike for treating the Keystone XL pipeline as a signal of whether the U.S. would seriously fight global warming.

Now that he's killed the project, Obama is holding it up as Exhibit A as he works to lock in his environmental legacy with a powerful international climate accord.

Rejecting Keystone is the latest in a long and growing list of steps Obama has taken to try to prove to the world the U.S. is getting serious about curtailing global warming, including landmark carbon dioxide emissions limits on U.S. power plants. Although the rules are proceeding for the time being, they face an uncertain future. Half of the states in the U.S. are suing to try to block them.