UK energy secretary Ed Davey has hailed US moves to cut carbon emissions from power plants.
President Barack Obama this week announced tough curbs on pollution from energy generation facilities.
The Clean Power Plan includes a measure to cut carbon emissions from the power sector by 30% between 2005 and 2030.
Davey described the announcement as “significant” and mooted a global climate deal in Paris next year.
“We must strive to get all nations to rise to the urgency of the climate challenge,” he said.
“That way there’s a real chance the world can sign up to a new global climate deal in Paris next year. These US proposals have come at a crucial time, and could shift the global debate.”