The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.


Quantity Value HuID Source Type
Mass of nitrogen needed for dairy production (2.5 ± 0.6) × 10-2 kg Nr / Mcal 40513 Eshel, G., Shepon, A., Makov, …
Global calorie supply from poultry meat 61 kcal / capita / day 40696 FAO (Food and Agricultural Organization …
Total annual harvested seafood mass ≈ 1.79 × 1011 kg / yr 41132 FAO (Food and Agriculture Organization …
Feed-to-food protein conversion efficiency of chicken 21 ± 7 % 41385 Shepon, A., Eshel, G., Noor, …
Annual sediment mass produced via agricultural erosion 2.43 (+0.53, -0.41) × 1013 kg / yr 41496 Borrelli, P., Robinson, D.A., Panagos, …
Global poultry protein supply 5.4 g / capita / day 42205 FAO (Food and Agricultural Organization …
Global pig meat protein supply 4.5 g / capita / day 43014 FAO (Food and Agricultural Organization …
Global calorie supply from eggs 38 kcal / capita / day 43153 FAO (Food and Agricultural Organization …
Global water volume used for irrigation 1.28 × 1012 m3 / yr 43593 Quin, Y., Mueller, N. D., …
Standing population of livestock ≈ 4.6 × 1010 animals 43599 FAO (Food and Agricultural Organization) …
Global freshwater fish protein supply 2.4 g / capita / day 43659 FAO (Food and Agricultural Organization …
Annual production mass of chicken poultry 1.14 × 1011 kg / yr 43685 FAO (Food and Agricultural Organization …
Global calorie supply from milk 144 kcal / capita / day 44076 FAO (Food and Agricultural Organization …
Harvest yield of wheat ≈ 0.35 kg / m2 44291 FAO (Food and Agricultural Organization) …
Mass of nitrogen needed for potato production ≈ 7 × 10-3 kg Nr / Mcal 44467 Eshel, G., Shepon, A., Makov, …