Personal choices matter — but the arithmetic of climate change is dominated by five tiers of actors operating at radically different scales. This tool lays the numbers side by side, so the comparison stops being a feeling and starts being a fact.
"A person from the richest 0.1% produces more carbon pollution in a day than someone in the bottom 50% produces all year."
— Oxfam International, Climate Plunder, 2025
The same greenhouse gas budget is being spent by five very differently sized actors. Here is what each tier actually contributes, in its own numbers.
Diet, driving, flying, and home energy — the choices a household can directly control. Real, but bounded: even zeroing out a personal footprint entirely removes a rounding error from the global total.
The richest 1% (77 million people) generate as much as the poorest two-thirds of humanity. A single billionaire's portfolio averages roughly 1.9 million tonnes a year — about 346,000× the average person.
Just 25 of these firms — state-owned and investor-owned — account for over half of that share. The fossil fuel industry has emitted more since 1988 than in the 237 years before it.
If combined, the world's militaries would rank as the fourth-largest national emitter — bigger than Russia. No country is required to report these emissions to the UNFCCC.
Data centres draw ~1.5% of world electricity, under 1% of CO₂ emissions today — but demand jumped 17% in 2025 alone, far outpacing overall grid growth, as AI training and inference scale up.
Pick a personal action. See how long you'd need to sustain it to offset one day of emissions from each of the other four tiers.
Every action below is real and worth doing. This is not an argument against doing them — it's a measure of what else has to happen alongside them.
RMI's three tools apply differently depending on which tier you're pointed at. Personal choices are mostly Innovate. Moving the other four tiers takes Resist and Exnovate as well.
Withhold consent from extractive systems and force accountability onto power.
Build and adopt the regenerative alternative at whatever scale you control.
Actively retire the extractive structures, not just outcompete them.
Personal choices are necessary but not sufficient. The math above isn't a case for giving up on individual action; a global population that halves its footprint changes the baseline enormously. But it is a case against letting "personal responsibility" be the entire strategy — a framing that corporate and elite actors have every incentive to promote, because it keeps 400,000-to-1 disparities out of the conversation.
The regenerative move is to hold both facts at once: reduce what you control, and spend equal energy on the tiers you don't — through disclosure rules, taxation, procurement standards, and organizing that puts pressure on the 100 companies, the 308 billionaires, and the militaries that between them account for the overwhelming majority of the problem.
Figures are best available estimates from the cited sources and are inherently uncertain, particularly for military emissions, which are not systematically reported under UNFCCC rules. This tool is for research, education, and advocacy planning — not a substitute for primary-source verification.
