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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.
Persónuleg kolefnisfótspor, með villumörkum sýnd
Flest ráð um kolefnisfótspor neytenda raða aðgerðum eftir því hversu dygga þær virðast. Lífsferilsmat raðar þeim eftir stærð, og þessar tvær raðir skarast varla.
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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.
Tengd lesefni
Weight Loss Evidence
Diets, drugs, behaviour and maintenance — ranked by the strength of the evidence behind them.
Celiac Wire
Coeliac disease news, guidelines and research — plus the practical business of eating.
EV Ground Truth
Electric cars reviewed on real range, charging behaviour and life-cycle emissions.
The Book Verdict
Health, science and self-improvement books fact-checked against the literature they cite.
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