The message is everywhere: You (alone) can save the planet
Choose a veggie burger instead of beef. Book this flight, not that one. Buy thrift over fast fashion. Shrink your "carbon footprint."
But here's what most people don't know: The very concept of a personal carbon footprint originated with oil giant British Petroleum (BP). In 2004, BP launched a carbon calculator to persuade people to measure their personal climate impacts. The campaign worked — shifting our collective gaze from fossil fuel companies, the biggest drivers of the climate crisis, to individuals like you and me.
Two decades later and with climate disasters rapidly intensifying, we're still caught in this sleight-of-hand. Choices made by corporations and governments continue to shape the speed and scale of climate disruption, while marketing campaigns around climate action try to shift our focus to consumer decisions.
New WRI research tells a different story. Our data shows that pro-climate behavior changes, such as driving less or eating less meat, could theoretically cancel out all the greenhouse gas (GHG) emissions an average person produces each year^1^ — specifically among high-income, high-emitting populations.
But it also reveals that efforts focused exclusively on changing behaviors, and not the overarching systems around them, only achieve about one-tenth of this emissions-reduction potential. The remaining 90% stays locked away, dependent on governments, businesses and our own collective action to make sustainable choices more accessible for everyone. (Case in point: It's much easier to go carless if your city has good public transit.)
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Voting at both the national and local levels is key, as elections directly determine whether governments enable or hinder pro-climate behaviors.
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Systemic pressure creates enabling conditions, but individuals need to complete the loop with our daily choices. It's a two-way street — bike lanes need cyclists, plant-based options need people to consume them. When we adopt these behaviors, we send critical market signals that businesses and governments respond to with more investment.
WRI's research quantifies the individual actions that matter most. While people worldwide tend to vastly overestimate the impact of some highly visible activities, such as recycling, our analysis reveals four significant changes that deliver meaningful emissions reductions. In order of climate impact, these behaviors are:
- Shift to sustainable ground travel
- Shift to air travel alternatives
- Install residential solar and increase home energy efficiency
- Eat more plant-rich meals