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- News (28)
- Research (75)
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- September 2012
- Background Note
Carbon Credits
By: Forest Reinhardt, Jost Hamschmidt and Mikell Hyman
- March 2025
- Case
Calyx Global: Rating Carbon Credits
By: Michael W. Toffel and Adam Chen
This case describes how rating agencies and other organizations are seeking to improve the quality of carbon credits sold in the voluntary carbon market to organizations seeking to use them to supplement their internal decarbonization efforts to meet their net zero... View Details
Keywords: Service Design; Certification; Auditing; Auditor Reputation; Carbon Credits; Carbon; Rating Agency Disagreement; Ratings; Climate Change; Business Model; Environmental Sustainability; Corporate Social Responsibility and Impact; Conflict of Interests; Reputation; Business Strategy
Toffel, Michael W., and Adam Chen. "Calyx Global: Rating Carbon Credits." Harvard Business School Case 625-102, March 2025.
- December 15, 2023
- Article
What Every Leader Needs to Know About Carbon Credits
By: Varsha Ramesh Walsh and Michael W. Toffel
Many companies have begun to look into credits to offset their emissions as a way to support their net zero goals as their target years get closer and closer. As it stands, the carbon credit market is too small to bear the brunt of reducing companies’ impacts on the... View Details
Keywords: Carbon Credits; Climate; Accounting; Carbon Offsetting; Carbon Abatement; Carbon Emissions; Carbon Footprint; Climate Change; Environmental Accounting; Environmental Regulation
Ramesh Walsh, Varsha, and Michael W. Toffel. "What Every Leader Needs to Know About Carbon Credits." Harvard Business Review Digital Articles (December 15, 2023).
- January 2023
- Case
EKI Energy Services: One Billion Carbon Credits
By: George Serafeim
Within nine months from the time of its Initial Public Offering (IPO) in April of 2021, EKI Energy Services (EKI) shares had increased by more than 8,000%. Equally explosive was the growth of the company’s revenues and Earnings Before Interest, Taxes and Depreciation... View Details
Keywords: Carbon Credits; Carbon Emissions; Growth; Business Analysis; Environmental Sustainability; Corporate Valuation; Climate Change; Accounting; Valuation; Transition; Renewable Energy; Analysis; Product Positioning; India
Serafeim, George. "EKI Energy Services: One Billion Carbon Credits." Harvard Business School Case 123-060, January 2023.
- May 2025
- Teaching Note
Calyx Global: Rating Carbon Credits
By: Michael W. Toffel and Adam Chen
Teaching note to support the Calyx Global: Ratinng Carbon Credits case (HBS No. 625-102) View Details
- 08 Jun 2011
- Lessons from the Classroom
Twenty-first Century Skill: Trading Carbon Credits
Cap and trade has become an increasingly popular mechanism used by governments to induce green behavior among corporate polluters, with news emerging almost daily. Just recently New Jersey Governor Chris Christie withdrew his state from the Regional Greenhouse Gas... View Details
- October 2023 (Revised March 2024)
- Case
KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing
By: George Serafeim, Siko Sikochi and Namrata Arora
The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details
Keywords: Clean Tech; Digital; Carbon Credits; Carbon Offsetting; Africa; Emerging Markets; Energy; Climate Change; Entrepreneurship; Energy Sources; Environmental Sustainability; Health; Market Design; Business Startups; Transition; Environmental Regulation; Policy; Energy Industry; Consumer Products Industry; Africa; Kenya; Rwanda
Serafeim, George, Siko Sikochi, and Namrata Arora. "KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing." Harvard Business School Case 124-022, October 2023. (Revised March 2024.)
- 01 Apr 2025
- News
Calyx Global: Improving the Quality of Carbon Credits
- 15 Dec 2023
- News
What Every Leader Needs to Know About Carbon Credits
- June 2024
- Teaching Plan
Teaching Plan: EKI Energy Services: One Billion Carbon Credits
By: George Serafeim
Teaching Plan for HBS Case No. 123-060. View Details
- 07 May 2024
- Blog Post
Opportunity to Offset Travel Emissions with Carbon Credits that Meet HBS Criteria
credits sold by projects that reduce GHG in the atmosphere and may also provide other societal benefits in areas such as equity and health. Not all carbon credits used for... View Details
- June 2008 (Revised October 2008)
- Case
International Carbon Finance and EcoSecurities
By: Andre F. Perold, Forest L. Reinhardt and Mikell Hyman
In late 2007, EcoSecurities had to decide whether to undertake a new Clean Development Mechanism (CDM) project in China. EcoSecurities was an aggregator of carbon credits and also invested directly in projects that produced carbon credits. Governments and firms... View Details
Keywords: Non-Renewable Energy; Cost Management; Investment Return; Business and Government Relations; Risk and Uncertainty; Investment; Cash Flow; Valuation; Pollutants; Environmental Sustainability; Financial Services Industry; China
Perold, Andre F., Forest L. Reinhardt, and Mikell Hyman. "International Carbon Finance and EcoSecurities." Harvard Business School Case 208-151, June 2008. (Revised October 2008.)
- 09 Apr 2025
- Podcast
Carbon Credit Ratings and Market Integrity: A Conversation on the Calyx Global Case
In this bonus episode of Climate Rising, we share an episode from Harvard Business School’s Cold Call podcast, featuring HBS professor Mike Toffel and Duncan van Bergen, Co-Founder of Calyx Global. The discussion focuses on Mike’s recent HBS case study, Calyx Global:... View Details
- 17 Nov 2015
- News
Carbon Neutral
to drive a cheaper car, or insulate their house and be a little more energy efficient,” says Minnick. At the same time, however, the plan would use the extra revenues generated from the carbon fee to issue a tax View Details
Keywords: Michael Blanding
- November 2008 (Revised March 2009)
- Case
South Pole Carbon Asset Management-Going for Gold?
By: Forest L. Reinhardt, Jost Hamschmidt and Mikell Hyman
In late 2008, Christoph Sutter, CEO of South Pole Carbon Asset Management, reflects on his firm's early success at originating carbon credits in developing nations and selling them to governments and firms that seek to offset their greenhouse gas emissions voluntarily... View Details
Keywords: Developing Countries and Economies; Non-Renewable Energy; Entrepreneurship; Governing Rules, Regulations, and Reforms; Environmental Sustainability; Corporate Strategy
Reinhardt, Forest L., Jost Hamschmidt, and Mikell Hyman. "South Pole Carbon Asset Management-Going for Gold?" Harvard Business School Case 709-030, November 2008. (Revised March 2009.)
- April 2024 (Revised October 2024)
- Case
New Belgium Brewing and Climate Change
By: Michael W. Toffel, Kenneth P. Pucker and Michael Norris
In 2023, Colorado-based craft brewery New Belgium Brewing was considering how best to meet its emissions reduction targets. After decades of growth, the beermaker had grown to become one of the largest craft brewers in the U.S., and was purchased in 2019 by Japanese... View Details
Keywords: Beer; Carbon Accounting; Carbon Credits; Operation Management; Renewable Energy; Supply Chain; Environmental Sustainability; Climate Change; Corporate Social Responsibility and Impact; Environmental Accounting; Food and Beverage Industry; United States; Colorado
Toffel, Michael W., Kenneth P. Pucker, and Michael Norris. "New Belgium Brewing and Climate Change." Harvard Business School Case 624-069, April 2024. (Revised October 2024.)
- November 2023
- Case
Gabon Special Economic Zone
By: John Macomber and Wale Lawal
Tropical rain forest covers about 80% of the West African nation of Gabon, part of the Congo Basin and the "lungs of the world." Gabon is one of the first nations to earn revenue from carbon sequestration...as long as the rain forest remains intact. There are... View Details
Keywords: Economic Development; Forestry; Wood; Carbon Credits; Supply Chain; Economic Growth; Developing Countries and Economies; Climate Change; Environmental Sustainability; Government Administration; Business and Government Relations; Strategy; Forest Products Industry; Africa; Gabon
Macomber, John, and Wale Lawal. "Gabon Special Economic Zone." Harvard Business School Case 224-012, November 2023.
- Web
Buy Now, Pay Later: Credit and Information Technology
HBS Quick Links MBA Executive Education Doctoral Programs Faculty and Research Alumni HBS Publishing Site Index HBS Home Contact Us Map/Directions Introduction Credit in Pre-Industrial Society Credit and the... View Details