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
12/4/24 - 6/18/25
US Climate Alliance Status
Member

26

Policies Enacted or In Progress
across 7 policy areas

36

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 Enacted policies have been passed or established in a state by a governing body via legislation, executive orders, rules, regulations, and/or other program creation, and remain in effect.
  • In-progress In progress policies have been established in a state, but final regulations, rules, or plans are pending final approval. This also includes legislation and executive orders that require regulations to be put into effect.
  • Partially Enacted Partially enacted policies have been enacted in the state, but are missing one or more policy components. Dashboard policies cannot be considered partially enacted unless policy components are available.
  • Not Enacted Not enacted policies have not been passed or established in the state or are no longer in effect.
Glossary of Terms
The colored bars indicate the status for each policy on the Dashboard, viewed across seven policy areas.
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Greenhouse Gas Emissions Projections in Maine

Created in partnership with

Business as Usual

Chart with 9 data series.
The chart has 1 X axis displaying Year.
The chart has 1 Y axis displaying Million Metric Tons / Year. Data ranges from -13.1016 to 17.70832009.
End of interactive chart.

Climate Policies in Maine

Filters
Status Policy Policy Area Policy Category Year Enacted
Enacted
Climate Governance and Equity
Climate Governance 2022
Empty column

45% by 2030 | Carbon neutral by 2045

Relative to 1990 levels

Enacted
Climate Governance and Equity
Climate Governance 2024
Empty column

Maine Won't Wait 2.0

Enacted
Climate Governance and Equity
Climate Governance 2022
Empty column

The 1990-2019 Greenhouse Gas Inventory was published in July 2022.

Not Enacted
Climate Governance and Equity
Climate Governance
Empty column

Climate bureaucracy consists of dedicated climate offices and staff, interagency working groups, task forces, and other bodies made up of government staff. These bodies are often responsible for writing a state's climate plan and implementing the policies and strategies identified to meet its climate targets.

Enacted
Climate Governance and Equity
Climate Governance 2019
Empty column

Maine Climate Council

Enacted
Climate Governance and Equity
Environmental Justice and Equity 2022
Empty column

"Frontline communities" are defined as those people and communities that experience the consequences of climate change first and to a greater degree than others.

The Department of Environmental Protection must also define "environmental justice populations," taking into consideration, at a minimum, median household income, race, ethnicity, and English language proficiency.

Establishing Policies
Not Enacted
Climate Governance and Equity
Environmental Justice and Equity
Empty column

Environmental justice (EJ) mapping tools are interactive maps that visualize key EJ concepts, such as demographic information, EJ community definitions, and environmental and public health threats.

Not Enacted
Climate Governance and Equity
Environmental Justice and Equity
Empty column

Environmental justice (EJ) community investment requirements help ensure communities most impacted by environmental burdens are benefitting equitably from public programs by requiring a certain percentage of funds and/or benefits from other policies are allocated to EJ communities.

Not Enacted
Climate Governance and Equity
Environmental Justice and Equity
Empty column

Environmental justice (EJ) bureaucracy consists of dedicated EJ offices and staff, interagency task forces, and other bodies made up of government staff responsible for developing and implementing EJ policy. These entities are often tasked with integrating EJ and equity into climate policy design and implementation.

Enacted
Climate Governance and Equity
Environmental Justice and Equity
Empty column

Equity Subcommittee of the Maine Climate Council

Not Enacted
Climate Governance and Equity
Environmental Justice and Equity
Empty column

Cumulative impact assessments determine the health and environmental impacts of renewing or granting a permit for certain pollution-generating facilities in environmental justice communities. Increased pollution burdens in communities may result in the permit application being denied.

Not Enacted
Climate Governance and Equity
Just Transition
Empty column

Just transition plans are documents that outline policies and recommendations aimed at supporting communities, workers, and industries affected by the transition away from fossil fuels. The plans often focus on workforce development and retraining, job creation, and economic diversification.

Not Enacted
Climate Governance and Equity
Just Transition
Empty column

Just transition offices and staff assist workers and communities transitioning away from fossil fuel extraction and use, typically through retraining programs and support with relocation and economic diversification. Offices and staff also coordinate with other state agencies to effectively design policy to achieve a just transition.

Not Enacted
Climate Governance and Equity
Just Transition
Empty column

Just transition advisory bodies write or advise on a state's just transition plan or report, and make recommendations on ways to support affected workers, communities, and industries. The bodies can consist of all non-government members, or be a mix of government and non-government members.

Not Enacted
Climate Governance and Equity
Just Transition
Empty column

Just transition funds support initiatives and investments aimed at facilitating the equitable transition of workers and communities affected by shifts in industries or policies that transition from fossil fuels.

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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