The Human Impacts Database

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


Quantity Value HuID Source Type
CO2 equivalent emissions from farmed bivalve production ≈ 900 - 1900 kg CO2e / t 81343 Gephart, J.A., et al.
Mass of nitrogen needed for poultry production (3.0 ± 1.0) × 10-2 kg Nr / Mcal 81737 Eshel, G., Shepon, A., Makov, …
Feed-to-food protein conversion efficiency of pork 9 ± 4.5 % 82172 Shepon, A., Eshel, G., Noor, …
Annual production mass of beef 6.7 × 1010 kg / yr 82278 FAO (Food and Agricultural Organization …
CO2 equivalent emissions from farmed tilapia production ≈ 10,000 - 11,00 kg CO2e / t 82500 Gephart, J.A., et al.
Production yield of chicken poultry ≈ 1.7 kg / chicken 82920 FAO (Food and Agricultural Organization …
Global pelagic fish protein supply 1.1 g / capita / day 83673 FAO (Food and Agricultural Organization …
Annual cultured Nile tilapia mass ≈ 4.53 × 109 kg / yr 83907 FAO (Food and Agriculture Organization …
Irrigated water requirement for rice production ≈ 0.39 m3 / Mcal 83922 Eshel, G., Shepon, A., Makov, …
Global cumulative sediment mass produced via agricultural erosion (2.7 ± 0.9) × 1012 kg 84302 Wang, Z., Van Oost, K.
Global agricultural water withdrawal ≈ 1.35 × 1012 m3 / yr 84545 FAO (Food and Agricultural Organization …
Land use for farmed salmon production ≈ 3700 - 6000 m2 / t 86413 Gephart, J.A., et al.
Annual captured Alaska pollock mass ≈ 3.40 × 109 kg / yr 87648 FAO (Food and Agriculture Organization …
Harvest yield of maize ≈ 0.6 kg / m2 87721 FAO (Food and Agricultural Organization) …
Global calorie supply 2927 kcal / capita / day 87877 FAO (Food and Agricultural Organization …