Publications

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November 2022 (Revised April 2025)
Teaching Note

Driving Decarbonization at BMW - Teaching Note

By: Shirley Lu, George Serafeim and Michael W. Toffel

Teaching note in support of the case "Driving Decarbonization at BMW" (HBS No. 123-008) View Details

September 2023
Teaching Note

Apple’s iPhone Revolution: Pioneering the Circular Economy

By: George Serafeim

Teaching Note for HBS Case 123-089. The case describes the Trade-In system for iPhones that allow iPhones to be refurbished and reused or to be recycled. The case provides information for the students to analyze the financial attractiveness of the Trade-In system and... View Details

Keywords: Iphone; Smartphone; Technology; Business Model Innovation; Carbon Emissions; Recycling; Business Model; Product Design; Climate Change; Environmental Sustainability; Green Technology; Technology Industry

May 2023
Article

Decarbonizing Health Care: Engaging Leaders in Change

By: Vivian S. Lee, Kathy Gerwig, Emily Hough, Kedar Mate, Robert Biggio and Robert S. Kaplan

Health care leaders are often surprised to learn that their operations contribute significantly to a warming climate. In addition to their roles as responders to and victims of extreme weather events, health care organizations have an obligation to reduce... View Details

Keywords: Health Care; Decarbonization; Carbon Emissions; Net-zero Emissions; Climate Change; Health Care and Treatment; Health Industry

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June 2023
Case

Investing in the Climate Transition at Neuberger Berman

By: George Serafeim and Benjamin Maletta

By mid-2023, Neuberger Berman (NB), an active asset manager, had grown its assets under management to about half a trillion dollars and took pride in its client centricity and innovative spirit. Responding to client demand for investment products that integrated... View Details

February 2024
Supplement

Can Cities Beat the Heat? (B11): Salt Lake City Climate Action Snapshot

By: Rosabeth Moss Kanter, Praveen Kumar and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Mitigation Policies; Carbon Footprint; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; City; Innovation Strategy; Investment; United States; Utah

February 2024
Supplement

Can Cities Beat the Heat? (B4): Columbus Climate Action Snapshot

By: Rosabeth Moss Kanter, Coelin P. Scibetta and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Mitigation Policies; Carbon Footprint; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; City; Innovation Strategy; Investment; United States; Ohio

April 2024
Teaching Note

Harvard University and Urban Mining Industries: Decarbonizing the Supply Chain

By: Shirley Lu and Robert S. Kaplan

Teaching Note for HBS Case No. 123-076. View Details

Keywords: Carbon Emissions; Blockchain; Supply Chain; Green Technology; Climate Change; Environmental Sustainability

February 2024
Supplement

Can Cities Beat the Heat? (B5): Detroit Climate Action Snapshot

By: Rosabeth Moss Kanter and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Mitigation Policies; Carbon Footprint; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; City; Innovation Strategy; Investment; United States; Detroit

February 2024
Supplement

Can Cities Beat the Heat? (B10): Pittsburgh Climate Action Snapshot

By: Rosabeth Moss Kanter, Coelin P. Scibetta and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Mitigation Policies; Carbon Footprint; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; City; Innovation Strategy; Investment; United States; Pittsburgh

February 2015 (Revised June 2016)
Case

Solar Geoengineering

By: Joseph B. Lassiter III and Stephanie Puzio

On December 8th 2013, as Dr. David Keith was leaving the set of the Colbert Show, he couldn't help but replay the interview over and over in his mind. Did he actually get his point of view on solar geoengineering across or had he just added to the stereotype that he... View Details

Keywords: Geoengineering; Carbon; Carbon Emissions; Energy; Nuclear; Nuclear Energy; De-extinction; Climate Change; Engineering; Entrepreneurship; Innovation and Invention; Energy Sources; Green Technology Industry; Energy Industry

August 2022 (Revised October 2022)
Case

Sian Flowers: Fresher by Sea?

By: Willy C. Shih, Michael W. Toffel and Pippa Tubman Armerding

The setting for this case is the Sian Flowers, a company headquartered in Kitengela, Kenya that exports roses to predominantly Europe. Because cut flowers have a limited shelf life and consumers want them to retain their appearance for as long as possible, Sian or its... View Details

Keywords: Supply Chain; Supply Chains; Sustainability; Sustainable Agriculture; Sustainability Reporting; Carbon Emissions; Supply Chain Management; Quality; Ship Transportation; Cost Management; Agriculture and Agribusiness Industry; Africa; Kenya; Netherlands; Europe

April 2024
Supplement

Recycle & Re-Match: The Future of Soccer Turfs

By: George Serafeim

February 2023
Article

Climate Solutions Investments

By: Alex Cheema-Fox, George Serafeim and Hui (Stacie) Wang

An increasing number of companies are providing products and services that help reduce carbon emissions in the economy. We develop a methodology to identify those companies and create a sample of publicly listed climate solutions companies allowing us to study their... View Details

Keywords: Decarbonization; Climate Finance; Climate Impact; Climate Risk; Environment; Sustainability; Carbon Emissions; Electric Vehicles; Energy; Renewables; Climate Change; Corporate Social Responsibility and Impact; Environmental Sustainability; Emerging Markets; Investment Portfolio

SSRN

May 2023
Supplement

Sian Flowers: Fresher by Sea - Video Supplement

By: Willy C. Shih

The setting for this case is the Sian Flowers, a company headquartered in Kitengela, Kenya that exports roses to predominantly Europe. Because cut flowers have a limited shelf life and consumers want them to retain their appearance for as long as possible, Sian or its... View Details

Keywords: Supply Chain; Supply Chains; Sustainability; Sustainable Agriculture; Sustainability Reporting; Carbon Emissions; Supply Chain Management; Quality; Ship Transportation; Cost Management; Agriculture and Agribusiness Industry; Africa; Kenya; Netherlands; Europe

December 2022
Supplement

Driving Decarbonization at BMW - Video Supplement

By: Shirley Lu, George Serafeim and Michael W. Toffel

Videos of Thomas Becker, Vice President of Sustainability and Mobility at BMW Group, in support of the case "Driving Decarbonization at BMW" (HBS No. 123-008) View Details

October 2021 (Revised May 2023)
Case

Engine No.1: An Impact Investing Firm Engages with ExxonMobil

By: Mark Kramer, Shawn Cole, Vikram S. Gandhi and T. Robert Zochowski

ExxonMobil, the world's fifth largest source of carbon emissions, remained committed to aggressively expanding its oil & gas business despite global warming. During the COVID pandemic this strategy resulted in massive losses as the price and demand for oil declined. ... View Details

Keywords: Carbon Emissions; Global Warming; Impact Investment Funds; Hedge Fund Activism; Leadership Development; Business Model; Renewable Energy; Resource Allocation; Decision Choices and Conditions; Governing and Advisory Boards

February 2024
Supplement

Can Cities Beat the Heat? (B14): San Jose Climate Action Snapshot

By: Rosabeth Moss Kanter, Hailey Chen and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Cities; Climate; Climate Impact; Innovation; Mitigation Policies; Carbon Footprint; Investing; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; Innovation and Invention; United States; San Jose

February 2024
Supplement

Can Cities Beat the Heat? (B7): Milwaukee Climate Action Snapshot

By: Rosabeth Moss Kanter, Coelin P. Scibetta and Jacob A. Small

Climate snapshots provide a summary of climate actions that occurred between 2018 and 2024, highlighting major green initiatives, innovations, carbon mitigation strategy, and action across multiple levels of government and the private sector. Snapshots also provide an... View Details

Keywords: Cities; Climate; Climate Impact; Innovation; Mitigation Policies; Carbon Footprint; Investing; Climate Finance; Mobility; Adaptation; Renewable Energy; Climate Change; Problems and Challenges; Sustainable Cities; United States; Wisconsin