Carbon Neutrality and Offsets

Visual describing the categories that make up emissions scopes 1, 2 and 3

Why carbon offsets?

Swarthmore College’s energy plan, To Zero By Thirty-Five (20X35), is a vital part of the College’s goal of achieving carbon neutrality by 2035. While 20X35 will reduce Scope 1 and 2 greenhouse gas emissions by more than 90 percent, the residual emissions and Scope 3 emissions must be addressed. 

Carbon offsets are tradable instruments that represent removal or reduction of greenhouse gas emissions. One offset or credit represents one metric ton of carbon dioxide equivalent (MTCO2e). In buying offsets, an institution funds a project that reduces greenhouse gas emissions and counts the reduction against their own emissions. There are many types of carbon offset projects, including various types of nature-based sequestration and tech-based projects. Carbon offsets have faced credibility and equity concerns, which pose a challenge in navigating the voluntary carbon market. However, revenue from carbon offset purchases allows for many climate mitigation projects that would not otherwise be possible to happen, as long as those projects are high quality. Offsets are also a mechanism to take ownership of harder to abate emissions, such as our Scope 3 emissions.

Carbon offsets have been the focus of President’s Sustainability Research Fellow projects in 2020-21 (Olivia Stoetzer ‘23) and 2025-26 (Quaye Agoyo ‘26). These projects have resulted in the creation of a carbon offsets strategy, including evaluation criteria and a governance structure. This will be used to evaluate carbon offsets and ensure that the College’s purchase of carbon offsets yields real emissions reductions and supports the College’s educational mission, values and broader sustainability goals. Carbon offset purchases will be funded by the Carbon Charge Fund. The Office of Sustainability and Carbon Charge Working Group will be responsible for reviewing projects, managing relationships with brokers, and facilitating the purchase of agreed upon projects.

Swarthmore’s Offsetting Strategy

Prioritize emission reduction. Emissions should be reduced directly to lower the quantity of offsets needed and to take ownership of our own climate impacts. This is in progress due to the implementation of 20X35 and the creation of a Scope 3 emissions plan.

Portfolio approach. Offsets vary in their methodology, type of emissions offset, and co-benefits offered. Including a variety of projects allows for balancing of the different project types, benefits, costs, and challenges.

Transparency. Offset purchases and project information should be available for the campus community to view.

Portfolio Criteria and Considerations

High Quality: A high quality project is one that is:

  1. Additional: the project and resulting emission reductions would not be viable without carbon credit revenue
  2. Permanent: emission reduction is permanent or has low risk of reversal
  3. Robustly quantified: accurately quantifies emission reductions and avoids overestimates
  4. Verified: project activities are verified and validated by a third-party
  5. Not environmentally or socially harmful: avoids any potential negative side effects

We are looking to the Core Carbon Principles, which includes the above and additional principles, ratings from Calyx Global, an independent carbon credit rater, and Second Nature’s Carbon Markets and Offset Guidance to help guide decision making on high quality offsets.

Price: Carbon offset price varies based on the location, co-benefits offered, scale, technology, and methodology. Usually, projects that are better quality and have more co-benefits will be more expensive. 

Co-benefits and safeguards: Co-benefits are social, environmental, or economic impacts from a project that are additional to the carbon emissions reductions. There should be as little risk as possible for environmental and social harms in a project.

Location: Offset projects are located all over the world. At Swarthmore, we are interested when possible in purchasing offsets that are local so that the emissions reduction takes place close to campus. In contrast, purchasing offsets for projects elsewhere can advance the Sustainable Development Goals and finance climate action in regions that experience harsher damages from climate change. Both of these goals may be achieved in a portfolio approach.

Connection to Swarthmore: Where applicable and only if meeting our criteria, working with alumni-affiliated organizations, such as Climate Vault. 

Education, research, and leadership opportunities: Offset projects may present an opportunity to connect projects to the curriculum, particularly in Environmental Studies or STEM disciplines. There is also an opportunity to support newer carbon removal methodologies with offset purchases, demonstrating sector leadership and innovation.

Criteria

Explanation

Importance

High-quality

Rated highly in Calyx Global and/or a CCP label eligible project

Required for each project

Price

Based on Carbon Charge budget and internal evaluation of available funding

Required for each project

Co-benefits

Include project(s) with additional social and environmental benefits

Flexibility within portfolio

Location

Local or not, think critically about the impact the project has in its region

Flexibility within portfolio

Connection to Swarthmore

Where applicable and only if meeting the rest of our criteria, include projects with College connections or that work towards the College’s mission.

Flexibility within portfolio

Education, research, and leadership

Encourage engagement and research opportunities through projects. Determine how to include and increase carbon removals in the future.

Consider opportunities for this in the future

Carbon Offset Purchases for FY2025 Emissions

Using the above strategy and criteria, a portfolio approach that allows us to support projects that collectively contain our desired criteria while mitigating risk was used to offset emissions equivalent to our directly financed air travel and study abroad emissions.

Project

Description

Offsets Purchased

Climate Vault RGGI Permits
Northeastern States, USA

Climate Vault uses regulated compliance markets to purchase and “vault” CO2 allowances, thereby preventing major emitters in those markets from utilizing them to emit carbon dioxide into the atmosphere. For Swarthmore College, Climate Vault purchases carbon allowance permits in the Regional Greenhouse Gas Initiative (RGGI), a cooperative effort among twelve northeastern states. Proceeds from the RGGI market are often invested by states back into communities, including clean energy programs, energy efficiency, and bill assistance to local businesses and communities.

200 MTCO2e

Tradewater Middle East ODS Destruction

Dammam, Saudi Arabia

Tradewater collects and destroys ozone depleting substances (ODS) from around the world. In this case, gases acquired from the Middle East are destroyed at a facility in Germany. While regulations have phased out the production of these chemicals, destruction of already produced gases is not required. This project permanently destroys CFC-12, a gas with a global warming potential 10,900 times higher than CO2, ensuring it does not leak into the atmosphere.

700 MTCO2e

Ciudad Juarez Landfill Gas to Energy

Chihuahua, Mexico

At the Ciudad Juarez Landfill, methane that would normally be released from the landfill into the atmosphere is captured and used to produce electricity. This process relies on expensive technology and would be unable to operate without climate finance.

1,676 MTCO2e

Proyecto Mirador Improved Cookstoves

Honduras

Proyecto Mirador is a non-profit that replaces cookstoves in Honduras households with more fuel efficient stoves. Construction and specialized stove parts are reliant on carbon offset revenues. Emissions are reduced and families benefit from less smoke and particulate matter in their homes.

200 MTCO2e

 

Total

2,776 MTCO2e

Previous Offset Purchases

Previous Offset Purchases

Before the implementation of the new strategy and criteria for this year's offset purchases, Swarthmore College has exclusively purchased offsets from Climate Vault, to offset varying amounts of Scope 3 emissions.

FY2024

Amount Offset: 1,972 MTCO2e - directly financed air travel emissions

FY2023

Amount Offset: 745 MTCO2e - 16% of Scope 3 emissions

FY2022

Amount Offset: 1,041 MTCO2e - directly financed air travel emissions

FY2021

Amount Offset: 1,067 MTCO2e - 100% of Scope 3 emissions

FY2020

Amount Offset: 3,000 MTCO2e - 50% of Scope 3 emissions