Our History

Massachusetts has long been regarded as a leader in climate and energy policy. Since 2008, there has been a deliberate focus on carbon emissions through the Global Warming Solutions Act (GWSA) and the Green Communities Act. Since the GWSA was enacted, the Commonwealth has seen steep reductions in carbon emissions from the electric sector, which has lead to a decrease in overall emissions. Unfortunately, these policies have had smaller impacts on emissions from buildings and almost no effect on transportation. Today transportation accounts for 39% of emissions, and buildings another 28%. The GWSA requires that overall emissions be reduced 25% by 2020 and 80% by 2050. Based on the Governor’s most recent study, we are not on target to meet these legal mandates. This not only leaves the state vulnerable to future litigation, it also challenges our role as a clear leader on climate policy.  In order to meet this requirement and and do our part to address the global climate crisis, Massachusetts must take aggressive steps to reduce emissions from these two sectors.

Keep Reading

An economy-wide carbon pollution price could move the state a long way toward meeting its mandates. It would require fossil fuel suppliers to pay pollution fees in proportion to the CO2 emissions of their products. This would give both suppliers and consumers a strong incentive to move to renewable energy and greater energy efficiency. The Massachusetts bills would devote most or all of the revenue to rebates for households and employers, with the House bill using a portion for investment in clean energy and transportation programs.

Such a carbon price is the most appealing option for Massachusetts for several key reasons. One, it can cut pollution greatly while protecting families, particularly low-income ones, and vulnerable businesses, due to the rebates and investment. Two, we keep in the state part of the $20 billion that consumers currently spend on out-of-state fuel imports from places like Texas, Pennsylvania, Saudi Arabia, and Nigeria. Three, consumers spend most of their fuel savings inside Massachusetts, growing the economy by $600 million a year and creating 18,000 jobs in the process. Four, there is widespread agreement among economists and policymakers that carbon pricing is the most cost-effective method of cutting emissions.

Carbon pricing legislation was first introduced the Massachusetts legislature in 2013 by Senator Mike Barrett and then-State Representative Tom Conroy. Although ambitious, the Conroy-Barrett bill caught the attention of climate leaders and concerned advocacy groups. In the next session in 2015 a new revenue-neutral bill was introduced by Senator Barrett. It was crafted with wider stakeholder input and supported by a new coalition,  the Campaign for A Clean Energy Future, within which Climate XChange had (and continues to have) a leading role. This bill was also aided by a series of educational meetings with a delegation from British Columbia, which instituted revenue-neutral carbon fees in 2008. Together these events really put carbon pricing on the map in Massachusetts.

Building upon the solid foundation formed previously around Senator Barrett’s single bill, the 2017-2018 legislative session saw tremendous progress. In addition to Barrett in the Senate, State Representative Jen Benson introduced a bill in the House that used 20 percent of the revenues for clean energy investment. Collectively the bills received 79 cosponsors, about 40 percent of the legislature. Later in the session an omnibus climate bill, S.2302, An Act to Promote a Clean Energy Future, was sponsored by Senator Pacheco and contained provisions to institute carbon pricing that Senators Barrett and Pacheco worked out together. This bill was amended and passed unanimously by the State Senate. But the House did not vote on the bill, and it was not passed into law.

As we enter the 2019-2020 legislative session, Climate XChange is working closely with coalition partners, legislative allies, business leaders, and stakeholders. The momentum we’ve built over the past six years has created a solid foundation for success, and we expect that our legislative leaders will introduce Massachusetts’ strongest carbon pricing legislation to date. To learn more about the coalition that has come together to support carbon pricing, Visit Here.

Past Carbon Pricing Bills of the 190th Session (2017-2018)

Senator Michael Barrett’s Bill (S.1821)

Representative Jennifer Benson’s Bill (H.1726)

Senate Clean Energy Omnibus (S.2564)

2019 – 2020 Legislative Session

This Session's Carbon Pricing Bills

H.2810 An Act to Promote Green Infrastructure and Reduce Carbon Emissions ǀ Sponsor: Representative Jennifer Benson ǀ Read the Bill ǀ Read the Factsheet

S.1924 An Act to Combat Climate Change ǀ Sponsor: Senator Michael Barrett ǀ Read the Bill ǀ Read the Factsheet

Learn About the Business Perspective on Carbon Pricing

The Weekly Policy Round-up

Stay up to date on what’s happening this session by subscribing to our Weekly Policy Round-up

Legislative Updates
Understanding the New Massachusetts Climate Law

After a year-long legislative push, a sweeping update to Massachusetts climate policy is now law. In short, the new law sets higher statewide goals to cut emissions, while creating opportunities for the state to better prioritize environmental justice, nudge utilities...

January 14th Roundup: Sunrise Endorses Wu for Mayor

[Not a subscriber? Sign up here] BEACON HILL HAPPENINGS –Today is the day: last day for Governor Baker to sign the climate bill (Tim Cronin): Governor Baker has less than 24-hours to sign a major climate bill that's been sitting on his desk...

Massachusetts Statehouse
Mass. Legislators Approve Landmark Climate Deal: Overview, Summary, & Context

**Update: This bill (S.2995) was vetoed by the Governor on 1/14/21. It was then re-filed (with the exact same bill text) on 1/19/21 as S.9. It was passed again by the Senate and House on 1/28/21 and sent back to...

October 23rd Roundup: MA Losing Ground On Emissions

[ Not a subscriber? Sign up here ] BEACON HILL HAPPENINGS - “5 N.E. governors criticize grid operator” (Bruce Mohl, Commonwealth Magazine): [read article] - “Labor, Environment, and Business Groups Call on Lawmakers to Forestall Transit Cuts” (Christian MilNeil, MassStreetsBlog): [read article] - “Mass. Lost Ground...

News and Insights
April 23rd Roundup: Earth Week & House Considers Green Budget Proposals

[Not a subscriber? Sign up here] BEACON HILL HAPPENINGS – Green priorities under consideration in House budget (Christian Morris): The Environmental League of Massachusetts (ELM) and other members of the Green Budget Coalition are continuing efforts to push for an increase in spending...

April 16th Roundup: Baker Revokes Approval for Springfield Biomass Plant

[Not a subscriber? Sign up here] BEACON HILL HAPPENINGS – “Baker pulls plug on Springfield biomass power plant” (Bruce Mohl, Commonwealth Magazine): "THE BAKER ADMINISTRATION pulled the plug on a controversial biomass power plant in Springfield on Friday amid growing pushback from opponents who...

April 2nd Roundup: Senator Barrett Advises Governor Against Undermining Climate Law

[Not a subscriber? Sign up here] BEACON HILL HAPPENINGS – With climate bill now law, some policymakers shift focus to implementation (Tim Cronin): Last week lawmakers joined Governor Baker as he signed a sweeping climate bill into law. Despite the back and forth over the...

March 26th Roundup: Next Generation Roadmap Bill Becomes Law

[Not a subscriber? Sign up here] BEACON HILL HAPPENINGS – Its (Finally) Law: Next Generation Roadmap legislation signed by Governor (Tim Cronin): This afternoon (3/26) in the state house library, Governor Baker joined legislative leaders to officially sign the Next Generation Roadmap bill (S.9)...

Recent Reports
How to Have Your Carbon Fee Cake and Eat It Too

Our analysis of Massachusetts Representative Jennifer Benson’s H.2810, An Act to Promote Green Infrastructure and Reduce Carbon Emissions, shows that while it imposes substantial fees on carbon pollution, creating incentives to reduce emissions, it will still financially protect low and...

Connect with us

Learn more about carbon pricing activity in Massachusetts by emailing us at

Are you a business leader? Sign onto our letter from businesses supporting carbon pricing in Massachusetts.

Sign upfor the latest news and events