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New research on science from Harvard Business School faculty on issues including science-based businesses, environmental sustainability, and climate change.
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Sweden’s Northvolt Electric Battery Maker: A Startup with a Mission

Re: George Serafeim

In Stockholm, Sweden an upstart battery maker, Northvolt, is trying to recreate the value chain for European car manufacturers making the switch to EVs. With two founders from Tesla and two experienced financiers at the helm, the company seems bound for success. But can they partner with government, scale fast enough, and truly be part of the climate solution? Harvard Business School professor George Serafeim discusses what it takes to scale a business—the right people, in the right place, at the right time—with the aim of providing a climate solution in the case, “Northvolt, Building Batteries to Fight Climate Change.” As part of a new first-year MBA course at Harvard Business School, this case examines the central question: what is the social purpose of the firm?

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

by Barbara DeLollis

Bank divestment policies that target coal reduced carbon dioxide emissions, says research by Boris Vallée and Daniel Green. Could the finance industry do even more to confront climate change?

A Rose by Any Other Name: Supply Chains and Carbon Emissions in the Flower Industry

Re: Willy C. Shih & Michael W. Toffel

Headquartered in Kitengela, Kenya, Sian Flowers exports roses to Europe. Because cut flowers have a limited shelf life and consumers want them to retain their appearance for as long as possible, Sian and its distributors used international air cargo to transport them to Amsterdam, where they were sold at auction and trucked to markets across Europe. But when the Covid-19 pandemic caused huge increases in shipping costs, Sian launched experiments to ship roses by ocean using refrigerated containers. The company reduced its costs and cut its carbon emissions, but is a flower that travels halfway around the world truly a “low-carbon rose”? Harvard Business School professors Willy Shih and Mike Toffel debate these questions and more in their case, “Sian Flowers: Fresher by Sea?”

BMW’s Decarbonization Strategy: Sustainable for the Environment and the Bottom Line

Re: Shirley Lu

In mid-2022, automakers, consumers, regulators, and investors were focusing on the transition from internal combustion engine (ICE) vehicles to electric vehicles (EV). While this would reduce tail-pipe emissions, it ignored the fact that the production of EVs—and especially their batteries—increases emissions in the supply chain. Many automakers were announcing deadlines by which they would stop selling ICE vehicles altogether, buoyed by investment analysts and favorable press. But BMW decided to focus on lifecycle emissions and pursued a flexible powertrain strategy by offering vehicles with several options: gasoline and diesel-fueled ICE, plug-in hybrid electric vehicles, and battery electric vehicles. That approach received a frostier reception in the stock market. Assistant Professor Shirley Lu discusses how BMW plans to convince stakeholders that its strategy is good for both the environment and the company’s financial performance in the case, “Driving Decarbonization at BMW.”

As Climate Fears Mount, More Investors Turn to 'ESG' Funds Despite Few Rules

by Rachel Layne

Regulations and ratings remain murky, but that's not deterring climate-conscious investors from paying more for funds with an ESG label. Research by Mark Egan and Malcolm Baker sizes up the premium these funds command. Is it time for more standards in impact investing?

Are Companies Actually Greener—or Are They All Talk?

by Rachel Layne

More companies than ever use ESG reports to showcase their social consciousness. But are these disclosures meaningful or just marketing? Research by Ethan Rouen delves into the murky world of voluntary reporting and offers advice for investors.

COP27: What Can Business Leaders Do to Fight Climate Change Now?

by Lynn Schenk and Danielle Kost

The US government plans to spend $370 billion to cut greenhouse gases and expand renewable energy—its biggest investment yet. In the wake of COP27, we asked Harvard Business School faculty members how executives could seize this moment.

Marie Curie: A Case Study in Breaking Barriers

Re: Robert Simons

Marie Curie, born Maria Sklodowska from a poor family in Poland, rose to the pinnacle of scientific fame in the early years of the twentieth century, winning the Nobel Prize twice in the fields of physics and chemistry. At the time women were simply not accepted in scientific fields so Curie had to overcome enormous obstacles in order to earn a doctorate at the Sorbonne and perform her pathbreaking research on radioactive materials. How did she plan her time and navigate her life choices to leave a lasting impact on the world? Professor Robert Simons discusses how Marie Curie rose to scientific fame despite poverty and gender barriers in his case, “Marie Curie: Changing the World.”

Larry Fink at BlackRock: Linking Purpose to Profit

Re: George Serafeim

In 2014, Larry Fink started writing letters to the leaders of some of the largest publicly listed companies, urging them to consider the importance of environmental, social, and governance (ESG) issues. Fink is the chairman and CEO of BlackRock, one of the largest asset management houses in the world. The firm’s success was rooted in its cost-effective, passive investment products that rely more on tracking indices and funds. But Fink wanted his firm to engage with the companies in which they invest and hold them accountable for their social and environmental impacts. What role should investors play in urging business leaders to take environmental, social, and governance issues more seriously and enforcing compliance? Harvard Business School professor George Serafeim discusses the merits of Fink’s approach, the importance of corporate investments in ESG themes, and how to lead a company driven by purpose and profit in his case, “BlackRock: Linking Purpose to Profit,” and his new book Purpose and Profit: How Business Can Lift Up The World.

When Experts Play It Too Safe: Innovation Lessons from a NASA Experiment

by Rachel Layne

A study of an international robotics competition reveals how experts prioritize easy-to-execute inventions over moonshot ideas. Are companies missing out on potential breakthroughs? Research by Jacqueline Lane and Karim Lakhani.

Management Lessons from the Sinking of the SS El Faro

Re: Joseph B. Fuller

Captain Michael Davidson of the container ship SS El Faro was determined to make his planned shipping trip on time—but a hurricane was approaching his intended path. To succeed, Davidson and his fellow officers had to plot a course to avoid the storm in the face of conflicting weather reports from multiple sources and differing opinions among the officers about what to do. Over the 36-hour voyage, tensions rose as the ship got closer and closer to the storm. And there were other factors compounding the challenge. The El Faro was an old ship, about to be scrapped. Its owner, TOTE Maritime, was in the process of selecting officers to crew its new ships. Davidson and some of his officers knew the company measured a ship’s on-time arrival and factored that into performance reviews and hiring decisions. When the ship ultimately sunk on October 1, 2015, it was the deadliest American shipping disaster in decades. But who was to blame for the tragedy and what can we learn from it? Professor Joe Fuller discusses the culpability of the captain, as well as his subordinates, and what it reveals about how leaders and their teams communicate under pressure in his case, "Into the Raging Sea: Final Voyage of the SS El Faro."

The Moral Enterprise: How Two Companies Profit with Purpose

by Avery Forman

Despite polarized attitudes, Rebecca Henderson argues that it's the perfect time for companies to reset their moral compass. In an essay from the book A Political Economy of Justice, she explores the social efforts of Cadbury and Unilever.

How to Scale a Startup Marketplace for Used Furniture

Re: Ayelet Israeli

AptDeco, a peer-to-peer marketplace for used furniture in the New York City area, was growing rapidly in the massive $120 billion furniture market, despite its complexity and high costs. Co-founders Reham Fagiri and Kalam Dennis were considering different options to scale the business, including converting sellers into buyers and vice versa, finding superusers to fuel the supply for their platform, expanding to new markets, and rebranding with a sustainability focus. Professor Ayelet Israeli and AptDeco co-founder Kalam Dennis discuss the best way to scale the business in the case, “AptDeco: Circular Economy Furniture Marketplace.” Open for comment; 0 Comments.

How Footwear Startup Allbirds is Decarbonizing Fashion

Re: Michael W. Toffel

In 2021, the footwear startup Allbirds was extending its product range into apparel and expanding beyond its online store to open more retail stores around the world. It was also freely sharing its know-how and material innovations with its competitors to try to scale its efforts to decarbonize fashion, by substituting natural materials for conventional petroleum-based materials and leather. But the company also had to find ways to remain differentiated, based on design and comfort. Professor Mike Toffel and Allbirds co-founder and CEO Joey Zwillinger discuss the growing environmental impact of the fashion industry and how the company managed the tension between advancing its environmental mission and staying ahead of competitors in the case, Allbirds: Decarbonizing Fashion. Open for comment; 0 Comments.

What's the Role of Business in Confronting Climate Change?

by Lynn Schenk and Dina Gerdeman

COP26 shined a light on the complexities of addressing the climate crisis. We asked Harvard Business School faculty members to discuss how business leaders can help spur change and what opportunities might emerge. Open for comment; 0 Comments.

Science: The Unlikely Frontier for New Business Ideas

by Avery Forman

Iterative R&D might get products to market quickly, but innovation grounded in scientific research tends to be more valuable, says research by Joshua Lev Krieger and colleagues. Open for comment; 0 Comments.

Who Pays For Wildfire and Hurricane Damage? Everyone.

by Kristen Senz

Think only coastal states bear the costs related to rising seas? Research by Ishita Sen and colleagues shows how homeowners everywhere pay for climate change, regardless of location. Open for comment; 0 Comments.

What Does an ESG Score Really Say About a Company?

by Kristen Senz

A key gauge in the $30 trillion sustainable investment market provides a murky picture of corporate social responsibility. Research by Anywhere Sikochi and George Serafeim probes the underlying factors. Open for comment; 0 Comments.

Can Fabric Waste Become Fashion’s Resource?

by Geoffrey Jones and Shelly Xu

COVID-19 worsened the textile waste crisis. Now it's time for the fashion industry to address this spiraling problem, say Geoffrey Jones and Shelly Xu. Open for comment; 0 Comments.

Accounting for Product Impact in the Telecommunications Industry

by George Serafeim and Katie Trinh

A product impact framework is a systematic methodology applicable to different companies across a wide range of industries. This study examines the telecommunications industry, estimating the value of a product’s reach, accessibility, quality, optionality, environmental use emissions, and end-of-life recyclability.