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Ranking
Which changes are actually large?
Household footprint accounting puts heating, transport and diet far ahead of everything people usually think about.
Amprentele de carbon personale, cu barele de eroare afișate
Cele mai multe sfaturi pentru consumatori privind carbonul clasifică acțiunile după cât de virtuoase se simt. Evaluarea ciclului de viață le clasifică după mărime, iar cele două ordonări se suprapun foarte puțin.
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The ordering problem
Recycling, turning off lights and avoiding plastic bags dominate the public conversation and are among the smallest levers available. Heating, flying, driving and diet dominate an actual household footprint. The gap between what people do and what matters is the single most useful thing this site can point at.
Food
The food footprint
Dietary shift has real, measurable effects — and the variation within a food category can exceed the variation between categories.
Aviation
Flying and non-CO₂ effects
Contrails and other non-CO₂ effects roughly double aviation's warming impact, and most calculators ignore them.
Tools
Do carbon calculators work?
They have been evaluated. Their value is educational rather than accounting — the uncertainty is very large.
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Health, science and self-improvement books fact-checked against the literature they cite.
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