Sustainability Worldwide: Comparing the Approaches to Climate Change in Spain and the United States

In a world largely united against the continuation of climate change, it is insightful to see how different countries address this common issue. In the United States, we are conditioned to believe that sustainability is a series of premium upgrades: buying a Tesla, installing a Nest thermostat, or sourcing organic cotton. We treat the planet like a problem that can be "solved" with the right purchase. In Spain, however, sustainability often looks like... nothing. It looks like a closed shutter, a damp shirt hanging on a balcony, and a walk to the local market. The uncomfortable truth is that while Americans wait for technology to save the climate, Spaniards have long practiced the quiet art of moderation—not necessarily because it's trendy, but because their lifestyle is structurally designed for it.

So which approach is more correct? The short answer is that perhaps a combination of two could be the best solution. The long answer involves a deeper dive into the daily habits and priorities of Spaniards and Americans.

The Illusion of "Abundance" vs. the Reality of Scarcity

In the U.S., we often operate under the "Illusion of Abundance." We view water and electricity as infinite background utilities. In contrast, Spain operates under a cultural idea of scarcity. Spain is one of the most water-stressed nations in Europe, and as of late 2025, national reservoir levels averaged a precarious 63.9%, with some southern regions dipping much lower (Prestige Living, 2025). Spanish people have been forced to conserve water for years, moving beyond temporary change and into a new cultural norm.

A perfect example to show the difference between the two countries is the light switches in hallways. American buildings usually run hallway lights 24/7. Some have begun switching to the more environmentally conscious motion sensor lights. However Spain goes even further. The standard here is a timer switch that a person presses and leaves the light on for a short amount of time until they can get into an elevator or move through the hallway. This simple decision to make the light an active decision rather than a passive one vastly decreases the amount of energy usage. Others and myself are more thoughtful on when light is needed: there is no reason to press the button for light when it is the middle of the afternoon with plenty of natural light. And while this small change might only save a marginal amount of electricity every day, when that saving is compounded by every building all across the country, the savings are astounding.

Water and Energy Usage: The Statistics

One of the starkest differences lies in how we use water. According to the EPA, the average American uses about 82 gallons of water per day at home, with roughly 30%, and up to 60% in arid regions, devoted to outdoor landscaping (Anytime Plumbing, 2025). The "American Dream" still largely requires a private, irrigated lawn. In Spain, the "default" is different. One difference is the “Shared Green.” Spain is a majority urban country, where people usually live in apartment buildings within a city and suburbs as we know them do not exist. That comes with the lack of a personal, private lawn attached to many houses in the US. Instead, their “yard” is a public park or plaza that is maintained by the city and allows for social gatherings while reducing the per-capita water footprint for irrigation.

When it comes to energy, the U.S. strategy is often "more power, but cleaner." We want to keep our 2,500-square-foot homes at a crisp 70°F year-round, just using solar panels to do it. Spain, meanwhile, leads with passive cooling and behavioral shifts.

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Feature	United States (Avg)	Spain (Avg)
Cooling Method	24/7 Central Air Conditioning	Shutters & Cross-ventilation
Laundry	Electric Clothes Dryer	Air-drying
Consumption	~12,000 kWh/year per capita	~5,000 kWh/year per capita

(Sources: GlobalPetrolPrices 2025; IEA 2025)

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The heavy exterior shutter is perhaps Spain's greatest sustainable tool. By closing them during the heat of the day, Spaniards block solar heat before it even enters the glass, a zero-energy "smart" solution that is far more effective than an American AC unit fighting against a sun-baked window. Furthermore, the electric dryer, a staple in 80% of U.S. homes, is a rarity in Spain. Air-drying clothes isn't a "sacrifice" there; it is the common-sense default.

Moving Forward: What Can You Do?

The best way to live a sustainable life is to adapt the best ideas from both countries’ sustainability approaches into your daily life. While some strategies, like the “Shared Green,” are not applicable to a current US homeowner, others can certainly make an impact. Here are a list of a few takeaways and easy ways to adapt your daily practices:

1. Keep Doing What Works.

   Before you go about making any drastic changes to your life for the sake of a new sustainability practice, you must make sure your current efforts do not get left behind. Continue to compost, to recycle, to use solar panels or drive an electric vehicle.

2. Start Simple.

   The hardest changes to make are drastic ones. The reason the “culture of scarcity” works in Spain is because it is the result of decades of indoctrination and realities. Deciding to abandon your drying machine completely and out of the blue might lead to regret or even cause you to give up on trying this new practice. Instead start simple: do not run the AC/heating every day. Fans or simply open windows can do wonders and keep a house cool while using a fraction of the heat.

3. Share What Works.

   If you try out a new sustainable practice and it works for you, tell your friends and family about it! Even subtle suggestions, like proposing a bike to get ice cream with your family instead of driving there, or suggesting someone open a window when visiting if the weather is very nice. Change starts with the individual, but greater change only comes when adopted by many.