The Human Impacts Database

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


Quantity Value HuID Source Type
Nitrogen emissions from farmed salmon production ≈ 100 - 120 kg N/ t 44545 Gephart, J.A., et al.
Total annual captured seafood mass ≈ 9.64 × 1010 kg / yr 44836 FAO (Food and Agriculture Organization …
Irrigated water requirement for beef production 1.6 ± 0.3 m3 / Mcal 47855 Eshel, G., Shepon, A., Makov, …
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 …
Irrigated water requirement for egg production (1.00 ± 0.05) × 10-1 m3 / Mcal 50173 Eshel, G., Shepon, A., Makov, …
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 …
Land use for farmed tilapia production ≈ 14,000 - 16,000 m2 / t 54780 Gephart, J.A., et al.
Greenhouse gas emissions for rice production ≈ 1.6 kg CO2 equivalent / Mcal 56049 Eshel, G., Shepon, A., Makov, …
Annual cultured Atlantic salmon mass ≈ 2.43 × 109 kg / yr 58323 FAO (Food and Agriculture Organization …
Irrigated water requirement for poultry production (1.4 ± 0.04) × 10-1 m3 / Mcal 58410 Eshel, G., Shepon, A., Makov, …
Mass of nitrogen needed for wheat production ≈ 1 × 10-2 kg Nr / Mcal 58561 Eshel, G., Shepon, A., Makov, …