The Human Impacts Database

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


Quantity Value HuID Source Type
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 …
Number of contemporary animal extinctions > 762 species 44641 IUCN (International Union for the …
Total annual captured seafood mass ≈ 9.64 × 1010 kg / yr 44836 FAO (Food and Agriculture Organization …
Growth in terrestrial gross primary production during the 20th century 31 ± 5 % 44893 Campbell, J.E., Berry, J.A., Seibt, …
Annual number of chickens used for egg production ≈ 7.5 × 109 chickens / yr 47918 FAO (Food and Agricultural Organization) …
Production yield of chicken eggs ≈ 9 kg / chicken 48027 FAO (Food and Agricultural Organization …
Global protein supply 83 g / capita / day 52273 FAO (Food and Agricultural Organization …
Feed-to-food caloric conversion efficiency of beef 2.9 ± 0.7 % 53022 Shepon, A., Eshel, G., Noor, …
Global calorie supply from cereals 1307 kcal / capita / day 54003 FAO (Food and Agricultural Organization …
Production yield of pork ≈ 80 kg / pig 54600 FAO (Food and Agricultural Organization …
Annual cultured Atlantic salmon mass ≈ 2.43 × 109 kg / yr 58323 FAO (Food and Agriculture Organization …
Feed-to-edible protein conversion efficiency of whiteleg shrimp ≈ 22 % 58621 Fry, J.P., Mailloux, N.A., Love, …
Annual captured gazami crab mass ≈ 4.9 × 108 kg / yr 59315 FAO (Food and Agriculture Organization …