Tani Colbert-Sangree

Project Manager

Tani joined GHGMI in the summer of 2019 and supports the organization as a Project Manager. His expertise covers carbon offsets, Article 6 of the Paris Agreement, GHG verification, GHG emissions accounting for electric companies, GHG emissions accounting for battery energy storage systems, programs to build national GHG inventorying capacity, and institutional structures to implement climate action plans.

Tani has developed training to accredit verifiers through the California Air Resources Board’s Compliance Offset Program and the Low Carbon Fuel Standard. He has also contributed to the offset credit rating initiatives of the Carbon Credit Quality Initiative and Calyx Global. He has over 10 years of experience with climate change mitigation and adaptation work. Tani works for a sustainable future, recognizing that this necessitates liberation from oppression for all people, disability inclusion in climate action planning and implementation, and respect for our natural world and its many forms of life.

He obtained a certificate of proficiency from GHGMI in 2015 for GHG Verification for Inventories and Projects while running his consultancy, Tomorrow’s Climate Solutions. Tani co-founded the Offset Network in 2016, a peer review system enabling universities to engage students in meeting their carbon neutrality goals by integrating curriculum and research with emission reduction project activities. He strategically led the Duke University Carbon Offsets Initiative from 2017-2019.

View All Publications

Colbert-Sangree, Tani 2022. What are emission factors? And where can I find them? GHGMI Blog. Published October 31st. https://ghginstitute.org/2022/10/31/what-are-emission-factors-and-where-can-i-find-them/

Broekhoff, D. and Colbert-Sangree, T., 2022. Exploring the Role of Greenhouse Gas Emissions Offsets to Achieve Corporate Decarbonization Goals: A Compendium of Technical Briefing Papers and Frequently Asked Questions. EPRI, Palo Alto, CA: 2022. 3002025723. https://www.epri.com/research/products/000000003002025723

Colbert-Sangree, Tani 2021. Did the eGRID tool for electric power emissions endure a climate-denying president? GHGMI Blog. Published June 8th 2021. https://ghginstitute.org/2021/06/08/egrid-tool-for-estimating-electric-emissions-fared-well-through-climate-denying-administration/

Colbert-Sangree, T., Gillenwater, M., Goldman, K., Diamant, A., and Fischer, L., 2021. Greenhouse Gas Emissions Accounting for Electric Companies: A Compendium of Technical Briefing Papers and Frequently Asked Questions. EPRI, Palo Alto, CA: 2021. 3002022366. Available: https://www.epri.com/research/products/000000003002022366

Colbert-Sangree, T. and Gillenwater, M., 2021. Greenhouse Gas Emissions Accounting for Battery Energy Storage Systems (BESS). EPRI Technical Report #3002022395. Available: https://www.epri.com/research/programs/109396/results/3002022395.

Colbert-Sangree, T., Barreca, A., and Gillenwater, M., 2021. NDC Partnership CAEP Activity 397: Assessing Institutional Capacity in Jamaica to Implement the Long-term Low Emissions and Climate Resilience Strategy. NDC Partnership Climate Action Enhancement Package.

Seager, J., Colbert-Sangree, T., Mahlung, C., Muller, N., and Silva, V. 2021. NDC Partnership CAEP Activity 401: International carbon markets as an opportunity for financing mitigation activities in Jamaica. NDC Partnership Climate Action Enhancement Package.

World Bank 2021. A Guide to Carbon Crediting: Designing and Implementing Domestic Carbon Crediting Mechanisms. Project for Market Readiness, World Bank. Washington DC.

Colbert-Sangree, Tani 2020. What is the role of adaptation in advancing emission reductions? GHGMI Blog. Published 25 Mar 2020. https://ghginstitute.org/2020/03/25/what-is-the-role-of-adaptation-in-advancing-emission-reductions/

Colbert-Sangree, Tani 2020. The Low Carbon Fuel Standard succeeded, but how does it work? GHGMI Blog. Published 22 Jan 2020. https://ghginstitute.org/2020/01/22/the-low-carbon-fuel-standard-has-succeeded-but-how-does-it-work/

Colbert-Sangree, Tani 2020. More on underestimated methane leakage: how can climate action address natural gas? GHGMI Blog. Published 6 Jan 2020. https://ghginstitute.org/2020/01/06/more-on-underestimated-methane-leakage-how-can-climate-action-address-natural-gas/

Broekhoff, D., Gillenwater, M., Colbert-Sangree, T., and Cage, P. 2019. “Securing Climate Benefit: A Guide to Using Carbon Offsets.” Stockholm Environment Institute & Greenhouse Gas Management Institute. Offsetguide.org/pdf-download/

Colbert-Sangree, Tani 2018. A Mexican model for offsetting carbon. Baltimore Sun, 3 Jan 2018. Published p. A11. Print.

Colbert-Sangree, N., and J.F. Suter. 2015. Community based fishery management within the Menai bay conservation area: A survey of the resource user. Marine Policy. 60: 171-177.

Urban Forestry Carbon Offset Protocol, 2016-2018. Duke Carbon Offsets Initiative. Available: https://offsetnetwork.org/s/UrbanForestryProtocol_v22.pdf

Afforestation Protocol, 2017. Tomorrow’s Climate Solutions. Available: https://offsetnetwork.org/s/AfforestationProtocolOption2.pdf 

Questions to Guide Offset Program Development, 2017. Duke Carbon Offsets Initiative. Available: https://sustainability.duke.edu/sites/default/files/offsetsdevquestions.pdf 

Bundling Carbon Offsets, 2017. Duke Carbon Offsets Initiative. Available: https://sustainability.duke.edu/sites/default/files/offsetbundle.pdf 

Carbon Sink Guide, 2017. Duke Carbon Offsets Initiative. Available: https://sustainability.duke.edu/sites/default/files/carbonsink.pdf 

Template Instructions: Project Plan. Offsetnetwork.org. Available: https://offsetnetwork.org/s/Project-Plan-Instructions-v10.pdf 

Project Plan Template. Offsetnetwork.org. Available: https://offsetnetwork.org/s/Project-Plan-Template-v11.docx 

General Protocol: Foundational Project Accounting, 2017. Offsetnetwork.org. Available: https://offsetnetwork.org/s/general-protocolv14-xk3p.pdf

Template: Project Description Document, 2017. Offsetnetwork.org. Available: https://offsetnetwork.org/s/PDD-Template-v15-p3xk.docx 

Validation Checklist, 2018. Offsetnetwork.org. Available: https://offsetnetwork.org/s/Validation-Guidance-v12.docx 

Validation Report Template, 2018. Offset Network.org. Available: https://offsetnetwork.squarespace.com/s/ValidationReportTemplatev12-3.docx