Tesla was founded in 2003 on the mission to accelerate the world's transition to sustainable transport through the production and sale of electric vehicles. The scope of this mission required staged business model development, beginning with low-volume production of a high-priced electric sports car and moving down-market gradually to produce higher volumes of more affordable electric vehicles. Tesla adapted its operating model at each stage and pursued innovations to unlock product performance and increased scale. With expansions into solar power, energy storage, and autonomous fleets, what business model change should Tesla pursue next?

This case describes the 2016 market entry in California of an innovative construction system for housing: BONE Structure, developed by the Canadian company of the same name. The choice of this structural system and construction method for a single family home in Palo Alto, California, provides the backdrop for a discussion about process innovations in manufactured housing and environmental sustainability. This case highlights BONE Structure's successful revamping of the supply chain for housing, a design for energy efficiency that has the potential to be even more so (if steel manufacturing could be powered by renewables), and finally, a building system that enables construction and renovation in difficult locations.

This is an MIT Sloan Management Review article. Multinational corporations are under growing pressure to make sure that their contractors and subcontractors in China meet environmental standards in their operations. Yet traditional approaches to ensuring environmental, health and safety compliance, such as checklist audits, have proved problematic. The authors conducted research over a one-and-a-half-year period with leading multinational buyers (mostly in the apparel and footwear industries) as well as with NGOs and industry groups active in China. Based on their research, the authors report that rather than simply monitoring Chinese suppliers'compliance with local environmental, health and safety (EHS) standards, leading companies are giving suppliers tools and incentives to independently improve environmental performance. They are helping suppliers use energy, water and materials more efficiently and reaching deeper into their supply chains to where the greatest environmental damage occurs. At the same time, they are overcoming their traditional reluctance as competitors to cooperate in monitoring and fixing problems at common suppliers.<BR> <BR>The authors describe innovative approaches that companies such as Nike are taking. More generally, the authors' recommendations include working closely with suppliers and providing incentives for identifying, disclosing and addressing problems; establishing collaborative relationships with NGOs and industry groups; and finding ways both to learn from suppliers'best practices and to facilitate learning among suppliers.<BR>

Nature plays an important role in maintaining the flow and purity of water. Human activities often degrade the quality and/or quantity of water flowing to downstream users, but the maintenance of natural ecosystems and the sound conservation management by those living upstream in watersheds can help provide a clean, reliable supply of water for downstream water users. Water funds are a way for downstream water users to preserve their water supply, by paying to restore and conserve natural ecosystems. They also enable upstream and downstream communities to work together for mutual benefit, preserving or restoring nature's ability to improve water quality and reliable flow while providing economic opportunities for upstream communities. This case introduces the concept of ecosystem services (the role that natural ecosystems play in sustaining and fulfilling human life) and payment for ecosystem services (PES), in which stakeholders pay in order to preserve or restore the ability of nature to provide these services. It describes water funds and other PES arrangements, as well as some of the challenges that water funds face. Several examples are provided of water funds and other PES programs.

In 2007, Walmart was sourcing approximately $750 million in seafood annually. Although output from the world's fisheries had declined to 3 percent of production levels in the year 1900, the company's volume of seafood business was growing at roughly 25 percent per year. Against this backdrop, Peter Redmond, vice president for seafood and deli, believed that continuity of supply was the single greatest long-term issue facing the seafood network. To help address this challenge as part of the company's recently-announced sustainability strategy, Walmart set a goal to transition to selling 100 percent MSC certified wild-caught seafood by the end of 2011. To accomplish its goal of selling only certified wild-caught fish, Walmart would have to work through its suppliers to increase the number of fisheries and processing plants in the MSC certification program. This case describes MSC certification and the salmon supply chain from the point of view of one of Walmart's tier-one seafood suppliers. It provides enough detail that students should be able to make recommendations regarding how should Walmart rationalize its seafood supply chain to reduce costs and promote sustainability.

In 2007, Walmart launched a new business strategy designed to meet three sweeping and aggressive environmental goals set by CEO Lee Scott: (1) to be supplied 100 percent by renewable energy; (2) to create zero waste; and (3) to sell products that sustain people and the environment. The initiation of this new approach to managing the company's extended supply chain is the subject of OIT-71A. In OIT-71B, the authors provide an update on Walmart's sustainability strategy, three years after the original case was written. In addition to outlining the progress made in the three sustainable value networks profiled in the A case (textiles, seafood, and electronics), the B case also describes how the company is strengthening, modifying, or abandoning the new supply chain management practices it adopted in 2007. It also touches on some of the company's new sustainability initiatives, including Walmart's 2010 GHG goal, the globalization of the network approach, and new measurement programs (e.g., GreenWERCS and the sustainability consortium).

This case focuses on an opportunity that American Electric Power (AEP) has to invest, with The Nature Conservancy (TNC), in one of the world's first projects for Reducing Emissions from Deforestation and Forest Degradation (REDD). The proposed plan was to protect 812,000 hectares of rich, biologically diverse forest land, known as Bosque Rojo, in central Peru. This project would address the two issues targeted by REDD by ending both deforestation from the local communities' conversion of land from forest to farmland and forest degradation from commercial logging. REDD projects offered a substantial opportunity to mitigate climate change, as deforestation and forest degradation contributed approximately 15-20 percent of global greenhouse gas (GHG) emissions. Protecting Bosque Rojo could prevent the release of millions of tons of carbon dioxide (CO2). The project partners and investors would obtain certified offset credits equivalent to the reduction in emissions over the 30-year project lifetime. Among U.S. power companies, AEP had one of the highest levels of CO2 emissions. It estimated its 2009 emissions would reach 150M metric tonnes. With climate change legislation on the horizon, it wanted to set an example for Congress to show that REDD offsets could lead to cost-effective reduction in GHG emissions, and also gain experience in the international REDD scene. AEP expected to have to substantially reduce its own emissions (e.g. by substituting wind power for coal in electricity generation) or obtain offset credits either on the open market or through direct participation in external emission reduction projects. AEP believed that REDD projects would be much cheaper than any of its other options to obtain offset credits. To confirm this belief, the company needed to calculate a net present value (NPV) for the project, understand the project's risks, and determine if Bosque Rojo was, indeed, the best use of company funds.

This case focuses on an opportunity that American Electric Power (AEP) has to invest, with The Nature Conservancy (TNC), in one of the world's first projects for Reducing Emissions from Deforestation and Forest Degradation (REDD). The proposed plan was to protect 812,000 hectares of rich, biologically diverse forest land, known as Bosque Rojo, in central Peru. This project would address the two issues targeted by REDD by ending both deforestation from the local communities' conversion of land from forest to farmland and forest degradation from commercial logging. REDD projects offered a substantial opportunity to mitigate climate change, as deforestation and forest degradation contributed approximately 15-20 percent of global greenhouse gas (GHG) emissions. Protecting Bosque Rojo could prevent the release of millions of tons of carbon dioxide (CO2). The project partners and investors would obtain certified offset credits equivalent to the reduction in emissions over the 30-year project lifetime. Among U.S. power companies, AEP had one of the highest levels of CO2 emissions. It estimated its 2009 emissions would reach 150M metric tonnes. With climate change legislation on the horizon, it wanted to set an example for Congress to show that REDD offsets could lead to cost-effective reduction in GHG emissions, and also gain experience in the international REDD scene. AEP expected to have to substantially reduce its own emissions (e.g. by substituting wind power for coal in electricity generation) or obtain offset credits either on the open market or through direct participation in external emission reduction projects. AEP believed that REDD projects would be much cheaper than any of its other options to obtain offset credits. To confirm this belief, the company needed to calculate a net present value (NPV) for the project, understand the project's risks, and determine if Bosque Rojo was, indeed, the best use of company funds.

In 2007, popular acceptance of the problem of global warming, and new recognition of its potential consequences, had brought carbon dioxide emissions to the front of Americans' minds. The continued turmoil in Iraq, as well as the United States' worsening relations with other oil rich nations such as Russia and Venezuela, highlighted a lack of energy security for Western countries importing vast quantities of petroleum. Moreover, rising gas prices were beginning to frustrate drivers at the pump while U.S. vehicles consumed 3.3 billion barrels of gasoline and 1.2 billion barrels of diesel fuel a year (as of 2006). These factors combined to create what some observers were calling a "perfect storm," drawing attention to the developed world's widespread addiction to oil. However, as concern about these issues was reaching an all-time high, transportation technology was undergoing a revolution. Advancements in alternative fuels, electric drive vehicles, and hybrid technologies were showing promise for reducing oil consumption. This paper examines some of these emerging innovations.

In October 2005, in an auditorium filled to capacity in Bentonville, Arkansas, Lee Scott, Wal-Mart's president and CEO, made the first speech in the history of Wal-Mart to be broadcast to the company's 1.6 million associates (employees) in all of its 6,000+ stores worldwide and shared with its 60,000+ suppliers. Scott announced that Wal-Mart was launching a sweeping business sustainability strategy to dramatically reduce the company's impact on the global environment and thus become "the most competitive and innovative company in the world." He argued that, "Being a good steward of the environment and being profitable are not mutually exclusive. They are one and the same." He also committed Wal-Mart to three aspirational goals: "To be supplied 100 percent by renewable energy; to create zero waste; and to sell products that sustain our resources and the environment." Against this backdrop, the case introduces Andrew Ruben, vice president of corporate strategy and business sustainability, and Tyler Elm, senior director of the same group. Ruben and Elm, who were chosen by Scott to lead the sustainability strategy, recognized that they needed to keep environmental improvement tightly coupled with business value and profitability for the strategy to succeed. The case describes Wal-Mart's efforts to accomplish this, focusing on three of the company's primary focus areas (seafood, electronics, and textiles) and their effect on the company's operations, supplier relationships, and results. It also explores how Wal-Mart is measuring and communicating its ideas about sustainability to its suppliers, associates, customers, and the public.

In 2000, FedEx Express and Environmental Defense began a collaboration to develop a source of new-generation delivery trucks with dramatically improved fuel efficiency and environmental impact. By 2005, prototypes had been developed by Eaton Corp., which supplied hybrid diesel-electric transmissions, and Freightliner, which integrated the transmissions into the delivery truck chassis. FedEx tested the prototypes and announced that it intended to buy 75 of the new hybrid trucks. Describes the process by which the new trucks were specified and developed and the roles of each of the organizations involved.