Northeast

Maine

Maine was the first state to set greenhouse gas reduction targets in 2003, and emissions decreased by 74% between 1990 and 2021. The transportation sector is driving the state’s emissions, primarily due to the geographically spread-out population. Long winters place the residential sector’s emissions closely behind transportation, as buildings require significant heating in the state’s colder months.
GHG Reduction Targets
All targets relative to 1990 levels
2030
45%
2045
Carbon neutral
Governor
Janet T. Mills (Democrat)
House Party
Democratic Majority
Senate Party
Democratic Majority
Legislative session
1/3/24 - 4/17/24
US Climate Alliance Status
Member

27

Policies Enacted or In Progress
across 7 policy areas

35

Policy Opportunities
across 6 policy areas

Northeast

9 states
This map shows the occurrence of climate policies passed at the state-level. Higher numbers represent more climate policies enacted.

Progress by Policy Area

  • Enacted
  • In-progress
  • Partially Enacted
  • Not Enacted
Glossary of Terms
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Greenhouse Gas Emissions Projections in Maine

Created in partnership with
Filters
Status Policy Policy Area Policy Category YR Enacted
Enacted
Empty column

Efficiency Maine Green Bank

Cross-Sector
Climate Finance 2021
Enacted
Empty column

The Regional Greenhouse Gas Initiative (RGGI) covers the electricity sector.

Cross-Sector
Carbon Valuation 2005
Not Enacted
Empty column

The social cost of carbon is a monetary estimate of the damage of each ton of greenhouse gases emitted. The social cost of carbon is used to quantify and monetize climate damages, representing the net economic cost of climate pollution to society.

Cross-Sector
Carbon Valuation

The State Climate Policy Dashboard tracks only passed policies and does not include bills currently proposed in legislative sessions. The website is intended to illustrate the current status of policies for each state, as well as key resources and model states for each policy.

Much of the information contained in this database is derived from the public domain, with links to resources provided. The information provided is made available solely for general information purposes and does not constitute legal advice. Click here for full Terms of Use.

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