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- March 2025
- Article
Limited Accountability and Awareness of Corporate Emissions Target Outcomes
By: Xiaoyan Jiang, Shawn Kim and Shirley Lu
Firms are increasingly announcing targets to reduce their carbon emissions, but it is unclear whether firms are held accountable for these targets. Here we examine emissions targets that ended in 2020 to investigate the final target outcomes, the transparency of target... View Details
- July–August 2024
- Article
Disclosing Downstream Emissions
By: Robert S. Kaplan and Karthik Ramanna
An increasing number of companies are using the E-liability carbon-accounting method as an important tool for tracking progress toward reducing global emissions in their supply chains. The system does not require formal accounting for downstream emissions—those... View Details
- June 2024
- Simulation
Vehicle Lifecycle Emissions Calculator
This Vehicle Lifecycle Emissions Calculator calculates the greenhouse gas emissions over the lifespan of internal combustion engine (ICEs) vehicles, battery electric vehicles (BEVs), and plug-in hybrid electric vehicles (PHEV), including those associated with their... View Details
Keywords: Decarbonization; Environment; Carbon Accounting; Carbon; Carbon Abatement; Electric Vehicles; Automobiles; Environmental Accounting; Environmental Management; Environmental Sustainability; Strategy; Technological Innovation; Supply Chain; Business and Stakeholder Relations; Climate Change; Transportation; Transportation Industry; Auto Industry; Battery Industry
- 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
- March 2024
- Article
Establishing the Foundation for Carbon Trading Markets
By: Robert S. Kaplan, Karthik Ramanna and Marc Roston
Poor measurement practices and inadequate controls have led to extensive trading of carbon offset instruments that do not materially reduce the supply of atmospheric GHG. We introduce five carbon offset accounting principles, built from fundamental financial-accounting... View Details
- 2024
- Working Paper
Principles and Content for Downstream Emissions Disclosures
By: Robert S. Kaplan and Karthik Ramanna
In a previous paper, we proposed the E-liability carbon accounting algorithm for companies to measure and subsequently reduce their own and their suppliers’ emissions. Some investors and stakeholders, however, want companies to also be accountable for downstream... View Details
- January 2024 (Revised January 2025)
- Case
Colbún and Chile's Energy Transition
By: Forest Reinhardt, Jenyfeer Martinez Buitrago and Mariana Cal
In May 2023, Colbún, Chile’s second-largest electricity generator, plans capacity expansions using renewable energy and storage. This strategy supports Chile’s commitment to carbon neutrality (also known as net zero emissions) by 2050. The case delves into the... View Details
- 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
- November 2023 (Revised February 2025)
- Background Note
Corporate Climate Targets
By: Willy C. Shih, Michael W. Toffel and Kelsey Carter
Companies that are addressing climate change by mitigating their greenhouse gas emissions often set reduction targets. This note describes several types of widely used carbon reduction targets, including carbon neutral, science based, net zero, real zero, and carbon... View Details
- October 2023
- Case
Prime Coalition: Estimating Climate Impact
A case on CRANE, a tool to help investors and green technology companies estimate the future climate impact of new technologies and products, called emissions reduction potential (ERP). The case includes material on CRANE’s methodology for estimating future carbon... View Details
- September 2023
- Supplement
CMA CGM: Reducing the Carbon Footprint of Container Shipping
By: Willy Shih
Marine transport is the most cost-effective way to move large volumes over long distances, and container shipping is the backbone of international trade in goods. Yet shipping contributed 3% of worldwide greenhouse gas emissions, and the deep-sea segment, which... View Details
- September 2023
- Supplement
CMA CGM: Reducing the Carbon Footprint of Container Shipping
By: Willy Shih
Marine transport is the most cost-effective way to move large volumes over long distances, and container shipping is the backbone of international trade in goods. Yet shipping contributed 3% of worldwide greenhouse gas emissions, and the deep-sea segment, which... View Details
- September 2023
- Teaching Note
CMA CGM: Reducing the Carbon Footprint of Container Shipping
By: Willy Shih
Teaching Note for HBS Case No. 623-006. Marine transport is the most cost-effective way to move large volumes over long distances, and container shipping is the backbone of international trade in goods. Yet shipping contributed 3% of worldwide greenhouse gas emissions,... View Details
- September 2023
- Supplement
CMA CGM: Reducing the Carbon Footprint of Container Shipping
By: Willy C. Shih
Marine transport is the most cost-effective way to move large volumes over long distances, and container shipping is the backbone of international trade in goods. Yet shipping contributed 3% of worldwide greenhouse gas emissions, and the deep-sea segment, which... View Details
- Article
Update on E-liability Accounting
By: Robert Kaplan, Karthik Ramanna and Piyush Jha
Since publication of the original E-liability carbon accounting paper (HBR, Nov 2021), we created the E-liability Institute to help companies, governments, and nonprofits implement the method. The Institute’s mission is to test and validate the method, and develop... View Details
- July–August 2023
- Article
Accounting for Carbon Offsets
By: Robert S. Kaplan, Karthik Ramanna and Marc Roston
Markets for carbon trading function poorly, and many traded offsets do not actually perform as promised. Without robust protocols for monitoring offsets and in the absence of proper accounting mechanisms, market-based approaches to reducing atmospheric GHG will be... View Details
- May 2023
- Case
CMA CGM: Reducing the Carbon Footprint of Container Shipping
By: Willy C. Shih and Emilie Billaud
Marine transport is the most cost-effective way to move large volumes over long distances, and container shipping is the backbone of international trade in goods. Yet shipping contributed 3% of worldwide greenhouse gas emissions, and the deep-sea segment, which... View Details
- May 2023 (Revised November 2023)
- Case
Arcos Dorados: Decarbonizing McDonald's in Latin America
By: George Serafeim, Michael W. Toffel, Jenyfeer Martinez Buitrago and Mariana Cal
This case describes the decarbonization strategy of Arcos Dorados—McDonald’s largest independent franchisee, operating in 20 countries and territories in Latin America and the Caribbean—and how the company measured its greenhouse gas (GHG) emissions, including those... View Details
Keywords: Environmental Accounting; Animal-Based Agribusiness; Plant-Based Agribusiness; Change Management; Forecasting and Prediction; Environmental Sustainability; Food; Growth Management; Supply Chain; Corporate Social Responsibility and Impact; Strategy; Agriculture and Agribusiness Industry; Food and Beverage Industry; Green Technology Industry; Consumer Products Industry; Latin America; North and Central America; South America
- April 3, 2023
- Article
Getting a Clearer View of Your Company’s Carbon Footprint
By: Robert S. Kaplan, Karthik Ramanna and Stefan Reichelstein
E-liability accounting is a new technique that will help customers factor in a product’s environmental footprint into their purchasing decisions and will help create a competition dynamic that leads to reduced carbon outputs. This article describes two pilot studies—by... View Details
- 2023
- Working Paper
Accounting for Carbon Offsets – Establishing the Foundation for Carbon-Trading Markets
By: Robert S. Kaplan, Karthik Ramanna and Marc Roston
Tackling climate change requires reductions in current and future greenhouse gas (GHG) emissions as well as the removal of existing GHG from the atmosphere. Carbon-offset producers purport to provide such removals. But poor measurement practices and inadequate controls... View Details