PORTLAND, Maine (AP) Maine’s Democratic governor says she will seek to use a series of law change proposals to help the state reach carbon neutrality by 2045.

Gov. Janet Mills made the statement Tuesday as the state released its four-year climate plan, entitled “Maine Won’t Wait.”

Mills, former Secretary of State John Kerry and members of the Maine Climate Council describe climate change as an existential threat to the state’s environment and economy that will require bold action at the state and federal levels.

The plan calls for the state to decrease greenhouse gas emissions by 45% by 2030 and then 80% by 2050 while reaching carbon neutrality by 2045.