Have you ever stopped to consider the environmental impact of the everyday items you use?
While many products might seem harmless, producing and consuming them can threaten ecosystems and deplete natural resources. When millions of people make the same choices every day, the cumulative effect can strain shared ecosystems and contribute to long-term environmental degradation.
This phenomenon is known as the tragedy of the commons, and understanding it can help you make more sustainable choices in your personal and professional life.
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What Is the Tragedy of the Commons?
The tragedy of the commons describes a situation in which individuals with access to a shared resource—also called a common—act in their own self-interest, ultimately depleting that resource.
British writer William Forster Lloyd first introduced the concept in 1833, and ecologist Garrett Hardin later popularized it in a landmark 1968 Science Magazine essay. The theory explains why individuals often make decisions based on their own immediate needs, even when those choices negatively affect others. In some cases, believing that others won’t act in the group’s best interest can further justify selfish behavior.
As climate change, biodiversity loss, and resource scarcity place growing pressure on businesses and communities, understanding the tragedy of the commons is increasingly relevant. Recognizing this pattern can help organizations make more sustainable decisions.
Here are five real-world examples that illustrate the tragedy of the commons and potential solutions.
Check out our video on the tragedy of the commons below, and subscribe to our YouTube channel for more explainer content!
It’s important for professionals to understand the tragedy of the commons so they can make more sustainable and environmentally friendly business decisions. Here’s an overview of what the tragedy of the commons is.
5 Tragedy of the Commons Examples
1. Coffee Consumption
While a simple cup of coffee might seem harmless, global demand places increasing pressure on the ecosystems that support its production. According to recent estimates, more than 2.25 billion cups of coffee are consumed worldwide every day.
As demand grows, forests and other natural habitats are cleared to expand coffee cultivation, threatening biodiversity and the long-term viability of coffee-growing regions. Arabica coffee—the world’s mostly commonly brewed variety—is now classified as endangered on the International Union for Conservation of Nature (IUCN) Red List. As suitable growing regions decline, the natural systems that support coffee production become increasingly strained.
Addressing this challenge requires more sustainable business practices in agriculture that protect ecosystems while helping ensure coffee production remains viable for future generations.
2. Overfishing
As the global population continues to rise, so does the demand for seafood. Without effective management, many fisheries are exploited faster than fish populations can recover, making overfishing one of the clearest real-world examples of the tragedy of the commons.
For example, overfishing has reduced the Pacific bluefin tuna to approximately three percent of its historical levels—posing significant risks to marine ecosystems. According to the United Nations Food and Agriculture Organization, approximately 34 percent of the world's fish stocks are overfished, while 60 percent are fished at their maximum sustainable level.
Addressing this requires sustainable fishing practices and stronger resource management to protect marine ecosystems while ensuring fisheries remain viable for future generations.
3. Fast Fashion
The fashion industry produces an estimated 92 million tons of textile waste every year—a direct consequence of business models built on overproduction and rapid consumption cycles.
As trends spread quickly through social media, consumers purchase new clothing more frequently and discard garments that are still wearable. The result is growing landfill waste, increased pollution, and higher greenhouse gas emissions, placing greater strain on shared environmental resources.
To combat this tragedy, companies must adopt more sustainable production practices that prioritize repair, resale, and recycling, while consumers can choose higher-quality, longer-lasting clothes. As sustainability expectations continue to rise, brands that fail to adapt risk increasing scrutiny from regulators, investors, and consumers alike.
4. Traffic Congestion
Traffic congestion is one of the best-known modern examples of the tragedy of the commons. According to a Harvard School of Public Health study, air pollution from traffic congestion in urban areas contributes to more than 2,200 premature deaths annually in the United States alone.
As more people choose to drive because they believe it’s the fastest way to travel, roads become increasingly congested, slowing traffic for everyone while increasing air pollution.
Cities investing in public transit, congestion pricing, and biking and walking infrastructure demonstrate how coordinated policies can encourage individual choices that benefit the broader community.
5. Groundwater Use
Groundwater supplies drinking water for approximately half the U.S. population, and agriculture uses roughly 50 billion gallons each day. In many regions, groundwater is being withdrawn faster than it can naturally recharge, placing growing pressure on the shared resource.
During droughts, water restrictions can help protect limited supplies. Yet, when individuals, businesses, or agricultural operations use more than their fair share—or ignore conservation measures altogether—there’s less remaining groundwater available for everyone. As climate change intensifies droughts and increases water demand, pressure on groundwater systems will grow.
Protecting groundwater requires responsible water management, conservation efforts, and policies that balance current needs with long-term sustainability.
Listen to Professor Reinhardt discuss climate change and the tragedy of the commons on The Parlor Room podcast, or watch the episode on YouTube.
Ways to Prevent the Tragedy of the Commons
Awareness is the first step. Action is what changes outcomes.
Understanding the tragedy of the commons is only the beginning. Preventing it requires making more sustainable choices, using shared resources responsibly, and supporting organizations that prioritize sustainability.
Find Alternative and Sustainable Products
One of the most direct responses to the tragedy of the commons is to shift consumption away from products and brands that contribute to environmental harm toward more sustainable alternatives. Choosing sustainable products instead of what Harvard Professor Rebecca Henderson, who teaches the online course Sustainable Business Strategy, calls, “business as usual” can help reduce the impact of your purchasing decisions.
One challenge is that many consumers believe purchasing more sustainable products—or boycotting less sustainable ones—won't make a meaningful difference on its own. That perception can discourage individual action, even when collective action has the potential to drive meaningful change.
The tragedy of the commons illustrates why, without regulation, transparency, or incentives, people often have little motivation to limit their personal use of shared resources. In fact, many have a “use it or lose it” mentality; if they’re aware a good will inevitably be depleted, they may think, “I better get my share while I can.”
Prevent Overconsumption
You likely encounter examples of the tragedy of the commons in your everyday life, and the following scenarios offer insight into how to prevent the overconsumption of resources. Consider how you’d respond:
During a drought, your town regulates the days and times you're allowed to water your lawn. How likely are you to disregard those restrictions? If everyone in your community abides by the regulations, you're more likely to follow them as well.
Your local grocery store has started charging for each paper or plastic bag. How likely are you to start bringing your own bags? Most people don’t want to pay a premium for something they'll likely throw away, so this change will encourage you to keep reusable bags on hand.
These examples show how, when faced with a public good, individuals can be motivated to cooperate through monetary or moral incentives or penalties. The same logic applies at the organizational level. Companies that embed sustainability into their incentive structures—through pricing, key performance indicators (KPIs), supply chain standards, or public reporting—are better positioned to avoid the tragedy of the commons than those that treat it as an afterthought.
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Why This Matters Now
The tragedy of the commons is not a historical curiosity—it’s playing out in real time across fisheries, aquifers, forests, and the atmosphere. For business professionals, understanding this dynamic is essential, not only as an ethical consideration, but as a strategic imperative. Regulatory pressure on environmental impact is intensifying globally, consumer expectations around sustainability are rising, and the physical risks of resource depletion are more material to business performance.
It’s easy for individuals and organizations to fall victim to the tragedy of the commons, but it doesn’t have to be this way. By developing a more sustainable mindset, you can become better aware of the long-term impact that your short-term choices have on the environment in your personal life and at work.
Are you interested in learning more? Explore our Sustainable Business Strategy course—one of our online business in society courses—and download our free e-book to discover how you can make a difference and become a purpose-driven leader.
This post was updated on July 24, 2026. It was originally published on February 6, 2019.