This note highlights how machine learning is being used to decarbonize (reduce GHG emissions) several key sectors including electricity, transportation, building, industrial processes, and agriculture -- and how machine learning is being used to accelerate efforts to remove carbon dioxide from the atmosphere (carbon removal).
In fall 2023, the Food Program of Met Council-America's largest Jewish charity dedicated to fighting poverty-completed the rollout of the newest version of its digital pantry platform to twelve food pantries in the Met Council food pantry network. The digital initiative coincided with a shift from food pantries' traditional "pre-packed" model-in which pantry staff and volunteers pre-packed standardized bags of foods and handed them out to long lines of waiting clients (the standard model in the US)-to a "client choice" model, where clients could choose their own food items. Over half of the pantries in Met Council's network were undergoing the transition to client choice. For most of these pantries, the client choice model was initially implemented as an in-person shopping experience, similar to a small-scale grocery store. For the digital pantries, though, clients would be able to see available items and place orders online, similar to an online grocery shopping experience. Met Council viewed the digital initiative as the next step towards increasing the dignity of the pantry experience and incentivizing healthy food choices. This case discusses the evolution of the digital pantry; specifically, the pros and cons of each pantry model from an operational efficiency perspective, how operational levers can influence consumers' purchasing decisions, fairness in resource allocation problems, and "push" versus "pull" inventory distribution models.
Life cycle assessment (LCA) is a holistic approach to quantifying the environmental impacts-including resources consumed and wastes produced-associated with the entire life cycle of a product, from the production or extraction of the raw materials used in its creation, to its end-of-use disposition. LCAs are often used to better understand how choices made in a product's design (e.g., materials, assembly, energy sources, energy efficiency) would affect its overall environmental impact. This note provides an overview of the different types of LCAs, LCA methodology, and LCA tools and databases.
Container shipping was responsible for moving more than 80% of globally traded goods, and almost 3% of global greenhouse gas emissions. A.P. Moeller-Maersk, one of the top three container lines, conducted an extensive lifecycle assessment (LCA) of alternative fuels, before deciding to bet on methanol. This case reviews the LCA methodology and the fuel choices, as well as the long term implications of their selection.
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 negative.
This background note describes the Amager Bakke waste-to-energy (WtE) plant in Copenhagen, which merges traditional waste incineration with a combined heat and power (CHP) plant and air pollution control (scrubbing) technology, and had plans to add carbon dioxide (CO2) capture technology to become the cleanest incineration plant in the world. The note also provides an overview of integrated waste management, waste incineration, district heating, Amager Bakke's process, and the future of waste management in Denmark.
To reduce greenhouse gas emissions that were contributing to climate change, the world needs to transition from fossil fuels to renewable energy sources. Power-to-X (PtX) refers to an array of processes that convert electricity (power) to various gaseous and liquid fuels (X). PtX is widely viewed as essential to accelerating the deployment of renewable energy. This note focuses on five central PtX fuels: hydrogen, ammonia, syngas, methanol, and methane.
Arla implemented a data based price incentive systems to measure, track, and influence climate friendly changes to reduce CO2 emissions across the world's fourth largest dairy cooperative.
The case describes Arla's history, in particular its climate change mitigation efforts, and how it implemented a price incentive system to motivate individual farms to implement scope 1 greenhouse gas emissions mitigation measures and receive a higher milk price. The case, and its data supplement, highlight Arla's use of a data score card and regression analysis model to track CO2 emissions across dairy farms in multiple European countries.
The Germany-based startup Vytal operated the largest digital-native reusable packaging-as-a-service network globally, having raised nearly €15 million, established a large network of restaurant partners, and prevented the use of millions of single-use take-out food containers. However, Vytal's growth was slower than expected, challenging its unique pay-per-use model and environmental goals. This case highlights Vytal's growth trajectory in the years leading up to 2023, outlining its business model, utilization of digital technology, strategies for acquiring partners and customers, and regulatory developments within Europe. It also presents several options that the founders are considering to reach profitability, prepare for a Series B financing round, and expand internationally, such as charging partners for unused containers, implementing consumer fees on single-use containers, launching a loyalty program, and franchising to expand more rapidly.
This note describes some of the most significant agricultural innovations in the Netherlands, their drivers, environmental performance implications, some challenges facing the sector, and the potential replicability of these innovations to other contexts.
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 generated directly by the company and by all of its suppliers. Set in May 2022, the case also describes the challenges faced by the company to understand the composition of its carbon footprint, as well as the actions it has taken to reduce it. Under CEO Marcelo Rabach, Arcos Dorados was focusing on reducing its carbon intensity. While the company had made progress in reducing carbon emissions from its operations, it now needed to develop a plan to address emissions in its supply chain, which directly impacted the composition of its menu. Options to reduce the carbon impact of menu items included replacing (or mixing) the beef used in sandwiches with less carbon-intensive ingredients; shifting sales toward chicken-based meals; adding plant-based menu options; and increasing the share of sales driven by coffee and ice cream. The plan should align with the company's double-digit growth strategy while also controlling costs to maintain profit margins. Confronting these challenges, what was the best product mix and prioritization for these alternatives? Which products should get more resources to develop and market? How should the company forecast demand for these products? And how could they ensure that their efforts to reduce their carbon intensity would avoid hampering the company's growth, especially given its context of fierce competition and macroeconomic and social disruptions?
The case describes BMW's electrification and decarbonization strategy, and how the company measured carbon emissions throughout the life cycle of its vehicles and used tools like carbon abatement cost curves to evaluate decarbonization opportunities. 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, the production of EVs-and especially their batteries-increased emissions in the supply chain. Under CEO Oliver Zipse, BMW was focusing on life cycle emissions and was pursuing a flexible powertrain strategy by offering vehicles with several powertrain options: gasoline and diesel-fueled ICE, plug-in hybrid electric vehicles (PHEV), and battery electric vehicles (BEV). Meanwhile, competing automakers were announcing deadlines by which they would stop selling ICE vehicles, buoyed by investment analysts and favorable press. BMW's approach was receiving a frostier reception in the stock market. Facing these pressures, how should BMW communicate and convince its stakeholders that its strategy was sustainable for both the environment and BMW's financial performance?
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 distributors used international air cargo to transport them to Amsterdam, where they were sold at auction or trucked to markets across Europe. The Covid-19 pandemic caused huge increases in the cost of shipping, so Sian launched experiments to ship roses by ocean using refrigerated containers. Chris Kulei, the Executive Director, was interested in not only the potential costs savings, but whether he could also market the reduced carbon footprint.
In 2015, David Crane was the CEO of NRG, the second-largest energy producer in the United States. NRG got most of its power from fossil fuels, but Crane - hired as CEO in 2003 as NRG emerged from bankruptcy - had invested heavily in alternative energy, loudly proclaiming the business benefits of being a leader on climate change. But by 2015, facing investor and board pressure, Crane was forced to spin off NRG's renewable assets, marking the end of his bold strategy.
In 2021, Kevin "Bud" Couch, a retired Navy captain who was now working as a civilian employee of the Navy Safety Center, was trying to determine how best to reduce the risk of Navy mishaps. The Navy had experienced a series of major mishaps in 2017 that had led to a closer examination of how it operated and what it could improve.