What Is a Carbon Footprint and Why Should You Care?

Your carbon footprint is the total amount of greenhouse gases your lifestyle generates—from the energy powering your home to the food on your plate. Understanding it is the first step toward reducing your impact on the planet. But why does it matter, and what can you actually do about it?

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Who is the test for?

The PS Lifestyle test is for anyone who’s concerned about global warming, and wants to understand what kind of impact their lifestyle has on their carbon footprint, and the environment.

What you get

By answering a few questions, we provide a detailed look at your personal carbon footprint,. You also get tailored lifestyle tips and an action plan. You also help steer society towards a positive and sustainable future.

Understanding Your Personal Climate Impact

Think of your carbon footprint as your personal climate shadow—everywhere you go, everything you do, you leave an invisible trail of carbon dioxide and other greenhouse gases. Heating your home, driving to work, eating dinner, buying new clothes—all of these activities require energy, and most of that energy still comes from burning fossil fuels. Your carbon footprint measures this total impact in terms of CO2 equivalent emissions, usually expressed as tons per year.


Here's why it matters: we're living through a climate emergency. Scientists agree that we need to dramatically reduce global emissions to avoid catastrophic warming. While governments and corporations have a huge role to play, researchers analyzing behavioral patterns across Europe have found that nearly 70% of emissions trace back to household consumption. That means individual choices—your choices—actually make a meaningful difference when enough people act together.


The average European's carbon footprint is around 8 tons of CO2e per year. To meet climate targets, we need to get closer to 2-3 tons. That might sound impossible, but here's the hopeful part: when you take the Lifestyle Test, you discover where your emissions actually come from—and where small changes can have the biggest impact. Maybe your commute is the problem, or your home heating, or your diet. Once you see your personal breakdown, action becomes clear. You're not trying to be perfect; you're identifying the few changes that matter most for your specific situation. That's how real change happens—one informed decision at a time.

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