Skip to Content
Streetsblog California home
Streetsblog California home
Log In

The northeast of the United States is starting to get serious about addressing the largest source of greenhouse gas emissions: the transportation sector.

Nine states — Connecticut, Delaware, Maryland, Massachusetts, New Jersey, Pennsylvania, Rhode Island, Vermont, Virginia — plus Washington, D.C. have committed to creating "caps" on emissions and participating in a trading system that will help lower tailpipe emissions.

The states are part of a new coalition of environmental, business and community groups that launched this week to help localities devise the program. The plan will be modeled on an earlier effort, the Regional Greenhouse Gas Initiative, that created a cap-and-trade system for power plant emissions in those states. Since that program's launch, emissions rates in the participating states fell 16 percent more than the national average. Electricity prices also went down for consumers, declining 3.5 percent in the first seven years compared to 7-percent price growth nationwide, according to an analysis [PDF] by the Acadia Center, a clean energy think tank.

But transportation progress has, until now, been lagging. Currently about 42 percent of the northeast and Mid-Atlantic region's total carbon emissions come from transportation. Participating states and regions will assess their total emissions from transportation and then set a goal to reduce them over time. The price attached to carbon will be adjusted to help states meet their goal.

Pollution emitters — in this case, it would be fuel suppliers — are then required to monitor their emissions and granted allowances. When they exceed their allowances, they are able to buy credits that can be traded on an open market across the states. The most recent auction for power plants in the gas initiative program generated $67 million, for example.

This chart shows how prices for carbon are set in the Northeast based on progress toward emissions goals. Graph: Arcadia Center
This chart shows how prices for carbon are set in the northeast based on progress toward emissions goals. Graph: Acadia Center
false

The revenues from the sales will then be invested in initiatives aimed at making transportation more sustainable.

"Charging stations for EVs, or creating a dedicated bike lane, what we’re really pushing is to make sure that it’s going to things that are going to mean the most reduction in pollution," Morgan Folger, of Environment America, which is part of the Our Transportation Future consortium leading the effort, told Streetsblog.

A large gathering was held at the Georgetown Climate Center this week with key stakeholders. Our Transportation Future and the affiliated environment business and community groups, hope to provide the support needed to realize the plan. The nine participating states have been tasked with completing their plans by the end of the year. Then they would need to be passed b the legislature of each state, allowing the credits to be traded across the entire regional market.

Massachusetts's Republican Governor Charlie Baker recently expressed support for the concept. Commonwealth Magazine estimated it would generate between $500 million on the high end and $150 million on the low end in new revenue for the state, and could be much-needed source of revenue for Boston's transit agency, MBTA. The low-end estimate would cost the average driver about $2 per month, Commonwealth's Andy Metzger reported.

Stay in touch

Sign up for our free newsletter

More from Streetsblog California

Tuesday’s Headlines

Only one headline about how LA is actively undermining safety today.

December 9, 2025

Opinion: Sean Duffy’s ‘Golden Age’ of Dangerous Streets

Sean Duffy is calling for a "golden age" of civility in American travel. He should start by ending barbaric policies that get people killed on the ground and in the skies.

December 8, 2025

Advocates Rally for Full and Fair Muni Funding

'Muni Now, Muni Forver,' advocates and electeds gear up to support improved Muni service.

December 8, 2025

City Mostly Rejects Another Round of HLA Appeals, Some After Deadline to Make Determination Had Passed

City continues to find new ways to not move forward with street safety projects.

December 8, 2025

Police and Fire Departments Shut Down Volunteer Crosswalk Painting Event in Westwood

LAPD cited People's Vision Zero volunteer organizer Jonathan Hale for misdemeanor "vandalism on city property," the charge typically means a $250 fine.

December 8, 2025

Monday’s Headlines

Another entry in the "how far will LA go to NOT make streets safer" files.

December 8, 2025
See all posts