The Massachusetts legislature has until midnight Tuesday to pass any remaining bills and send them to Governor Charlie Baker. That includes a major climate bill up for a vote.

"An Act Creating a Next-Generation Roadmap for Massachusetts Climate Policy" surfaced after six months of negotiations Sunday, aiming to get Massachusetts to net-zero greenhouse gas emissions by 2050.

We discuss the bill with one of its chief negotiators, State Senator Michael Barrett, and hear from WBUR senior reporter Bruce Gellerman.