The Senate is close to wrapping up talks ahead of introducing a compromise climate change bill, said a top Democratic lawmaker who discussed ideas with industry groups on Wednesday.

“We’re planning to button up our efforts somewhere I hope next week,” Senator John Kerry told reporters after meeting with a coalition that represents automakers, forestry and paper companies, Big Oil, steel, mining, electricity and others.

Kerry is working with Republican Senator Lindsey Graham and independent Senator Joseph Lieberman on a bill to require U.S. industry to cut emissions of carbon dioxide and other greenhouse gases associated with global warming.