Browner: Climate bill needs trade protections for manufacturers

“We certainly recognize that for certain manufacturing sectors – that generally get referred to as energy-intensive, trade-sensitive – there are going to have to be mechanisms that recognize the fact that they compete in a global market,” Browner said. “There are a number of ideas that have been put on the table.”

Protections including carbon tariffs – or “border adjustments” – and free emissions allowances are vital to senators from manufacturing-heavy states such as Sherrod BrownSherrod Campbell BrownOvernight Finance: House passes spending bill with border wall funds | Ryan drops border tax idea | Russia sanctions bill goes to Trump's desk | Dems grill bank regulator picks Dems grill Trump bank regulator nominees Senate Dems launch talkathon ahead of ObamaCare repeal vote MORE (D-Ohio) and Debbie StabenowDebbie StabenowHead of McConnell-backed PAC: We're 'very interested' in Kid Rock Senate campaign Juan Williams: Trump and the new celebrity politics Senate Dems unveil trade agenda MORE (D-Mich.).

Brown, Stabenow and eight other Democrats laid out their demands in a letter to the architects of upcoming Senate climate legislation – Sens. John KerryJohn KerryCongress needs to assert the war power against a dangerous president Sinclair and 'Big Media': The outrage that caused the outrage Tillerson sets a lost State Department on the right course MORE (D-Mass.), Lindsey GrahamLindsey GrahamGraham: Trump's Charlottesville rhetoric 'dividing Americans, not healing them' OPINION: Congress should censure Trump for his unfit conduct Supporting 'Dreamers' is our civic and moral duty MORE (R-S.C.) and Joe Lieberman (I-Conn.) – last week.

Kerry, Graham and Lieberman plan to unveil their long-awaited climate and energy bill April 26.