Publications

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18 Jun 2024
Research & Ideas

Industrial Decarbonization: Confronting the Hard Challenges of Cement

Cities like Cairo; Chongqing, China; Delhi; and Kinshasa, Congo are experiencing population explosions accompanied by unprecedented demand for homes, offices, factories, and infrastructure. In the United States, the Biden Administration’s policy-driven infrastructure... View Details

Keywords: by by Janelle Conaway; Green Technology; Energy; Industrial Products; Manufacturing

28 Aug 2012
First Look

First Look: August 28

unregulated regions and increase global emissions in the process. Carbon tariffs have emerged as a possible mechanism to address these concerns by imposing carbon costs on... View Details

Keywords: Sean Silverthorne

March 2025 (Revised June 2025)
Background Note

Getting to Net Zero: The Role of the Financial Sector

By: Shawn Cole, Jonah Zahnd, Karina Chung and Jack Cenovic

In early 2025, momentum towards the goal of reaching net zero carbon emissions by 2050 continued in many parts of the world, even as it appeared to face a set-back following the election of Donald Trump as president of the United States. Financial institutions... View Details

Keywords: Transition; Climate Change; Environmental Regulation; Environmental Law; Corporate Social Responsibility and Impact; Risk and Uncertainty; Competitive Advantage; Financial Services Industry

18 Apr 2023
Research & Ideas

What Happens When Banks Ditch Coal: The Impact Is 'More Than Anyone Thought'

Consumers who are eager to mitigate climate change can take many actions, such as reducing the number of airline flights they take or installing solar panels on their homes. But the planet is in a race against time, and individual action alone won’t help most countries... View Details

Keywords: by Barbara DeLollis; Financial Services; Mining

2021
Article

Nudging the Commute: Using Behaviorally-Informed Interventions to Promote Sustainable Transportation

By: Ashley Whillans, Joseph Sherlock, Jessica Roberts, Shibeal O'Flaherty, Lyndsay Gavin, Holly Dykstra and Michael Daly

Dramatic reductions in carbon emissions must take place immediately. A human-centric method of reducing environmental impacts is to “nudge” employees away from single-occupancy vehicles (SOVs) toward more sustainable commuting options. While an abundance of research... View Details

Keywords: Behavioral Science; Transportation Demand Management; Commuting; Single-occupancy Vehicle Commutes; Transportation; Behavior; Change; Environmental Sustainability

Read Now

July 2009 (Revised January 2014)
Case

Sustainability at Millipore

By: Michael W. Toffel and Katharine Lee

This case describes Millipore Corporation's approach to becoming a more environmentally sustainable company. As he prepared for his quarterly meeting with the CEO, the Director of Sustainability needed to develop positions on several issues. Tactically, he needed to... View Details

Keywords: Investment; Corporate Disclosure; Operations; Corporate Social Responsibility and Impact; Organizational Structure; Natural Environment; Environmental Sustainability; Pollutants

19 Dec 2014
Research & Ideas

China’s Complicated Relationship With Mother Nature

Despite its name, the Great Wall of China began as a series of smaller, isolated defensive fortifications. Those structures grew and were later unified into the imposing structure that exists today. The Great Wall is a great metaphor for the Chinese economy. By... View Details

Keywords: Re: William C. Kirby; Manufacturing

2012
Chapter

Citizens' Perceptions and the Disconnect Between Economics and Regulatory Policy

By: Jonathan Baron, William T. McEnroe and Christopher Poliquin

Economic theory is clear about the advantages and disadvantages of various ways of regulating negative externalities, such as command and control, cap and trade, taxation, subsidies, and tort law. Yet public policy rarely follows the recommendations that follow from... View Details

Keywords: Regulation; Decision Making; Government and Politics; United States

24 Sep 2014
Op-Ed

We Need a Miracle. New Nuclear Might Provide it.

On September 4, the US Energy Information Agency (EIA) published its 2014 International Energy Outlook. Earlier this year, the International Energy Agency (IEA) released its latest World Energy Investment Outlook. Both watchdogs tell us the same story. Energy... View Details

Keywords: by Joseph Lassiter; Energy; Utilities

2021
Working Paper

Corporate Environmental Impact: Measurement, Data and Information

By: David Freiberg, DG Park, George Serafeim and T. Robert Zochowski

As an organization’s environmental impact has become a central societal consideration, thereby affecting industry and organizational competitiveness, interest in measuring and analyzing environmental impact has increased. We develop a methodology to derive comparable... View Details

Keywords: Environment; Impact; Measurement; Environmental Ratings; Corporate Valuation; Financial Materiality; Sustainability; Environmental Impact; Environmental Strategy; Impact-Weighted Accounts; IWAI; Environmental Sustainability; Corporate Social Responsibility and Impact; Measurement and Metrics; Valuation

SSRN

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09 Dec 2014
First Look

First Look: December 9

Download working paper: http://www.hbs.edu/faculty/Publication%20Files/15-016_c6e7c9cc-70a3-4119-bd7b-8e4b25a26312.pdf Technology Choice and Capacity Portfolios Under Emissions Regulation By: Drake, David, Paul R. Kleindorfer, and Luk N.... View Details

Keywords: Sean Silverthorne

February 2024 (Revised April 2024)
Case

CPP Investments—The Road to Zero

By: Vikram Gandhi and Radhika Kak

In February 2022, Canadian Pension Plan (CPP) Investments, the investment management organization that managed funds for the CPP, one of the biggest pension plans in the world, announced a net-zero commitment for its portfolio by 2050. Under its CEO, John Graham, it... View Details

Keywords: Environmental Sustainability; Asset Management; Investment Portfolio; Leading Change; Business and Stakeholder Relations; Corporate Social Responsibility and Impact; Financial Services Industry; Canada; California

11 Jun 2012
Research & Ideas

When Business Competition Harms Society

UCLA Anderson School, and Michael W. Toffel of Harvard Business School. In the quest to discover whether competition breeds unethical behavior, the researchers examined the vehicle emissions testing program in New York State, one of... View Details

Keywords: by Carmen Nobel; Auto

August 2021 (Revised September 2022)
Case

Patch Technology: Making It Easy to Do the Right Thing

By: Tomomichi Amano, Robert J. Dolan and Carol Zhang

In 2021, the growing threat of climate change pushed companies around the world to understand that significant behavioral change was necessary. While many recognized that decreasing emissions was critical, more sophisticated players such as Microsoft began to recognize... View Details

Keywords: Environmental Management; Marketing; Digital Platforms; Climate Change

January 2012 (Revised September 2015)
Case

Tough Decisions at Marks and Spencer

By: George Serafeim

In 2007, under the leadership of CEO Stuart Rose, the iconic British retailer Marks and Spencer, with great fanfare, announced its "Plan A" initiative. Based on the five essential pillars of climate change, waste, sustainable materials, fair partnership, and health,... View Details

Keywords: Decision Making; Environmental Sustainability; Corporate Social Responsibility and Impact; Corporate Strategy; Retail Industry

15 Nov 2011
Working Paper Summaries

Engaging Supply Chains in Climate Change

Keywords: by Chonnikarn Fern Jira & Michael W. Toffel

Research Summary

Corporate transparency and information disclosure strategies

By: Michael W. Toffel

This research focuses on transparency and information disclosure strategies, a topic of growing importance in environmental sustainability, corporate strategy, stakeholder relations, and public policy. My prior research in this area explored why... View Details

Keywords: Transparency; Disclosure Strategy; Disclosure; Environment; Environmental Performance; Regulation; Supply Chain; Environmental Sustainability; United States

Research Summary

Managing sustainability in supply chains

By: Michael W. Toffel

I am examining codes of conduct, management process standards, and government voluntary programs that address environmental and labor issues, seeking to understand what enables some of these programs to actually deliver on their promise of distinguishing organizations... View Details

Keywords: Environment; Environmental Performance; Environmental Regulation; Environmental Strategy; Regulation; Supply Chain; Supply Chain Management; Manufacturing Industry; Auto Industry; Service Industry; Construction Industry; United States; California

2025
Working Paper

Residential Battery Storage - Reshaping The Way We Do Electricity

By: Christian Kaps and Serguei Netessine

In this paper, we aim to understand when private households invest in behind-the-meter battery storage next to rooftop solar and how those batteries impact households, the electricity market, and emissions. We answer three main research questions: 1) When do customers... View Details

Keywords: Solar Power; Energy Storage; Technology And Innovation Management; Energy; Energy Policy; Renewable Energy; Technological Innovation; Innovation and Management; Energy Industry