The Human Impacts Database

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


Quantity Value HuID Source Type
Fraction of agricultural land that is cropland ≈ 32 % 67452 FAO (Food and Agricultural Organization) …
Land area requirement for dairy production. 10 ± 3 m2 / yr / Mcal 68128 Eshel, G., Shepon, A., Makov, …
Feed-to-edible protein conversion efficiency of grass carp ≈ 18 % 68171 Fry, J.P., Mailloux, N.A., Love, …
Global calorie supply from pig meat 123 kcal / capita / day 68335 FAO (Food and Agricultural Organization …
Greenhouse gas emissions for potato production ≈ 0.9 kg CO2e / Mcal 69717 Eshel, G., Shepon, A., Makov, …
Global protein supply from milk 8.6 g / capita / day 69949 FAO (Food and Agricultural Organization …
Harvest yield of potato ≈ 2 kg / m2 72116 FAO (Food and Agricultural Organization) …
Green house gas emissions for wheat production ≈ 0.25 kg CO2e / Mcal 74420 Eshel, G., Shepon, A., Makov, …
Total annual cultured seafood mass ≈ 8.21 × 1010 kg / yr 74604 FAO (Food and Agriculture Organization …
Irrigated water requirement for wheat production ≈ 0.05 m3 / Mcal 75138 Eshel, G., Shepon, A., Makov, …
Land area requirement for pork production 5 ± 2 m2 / yr / Mcal 75575 Eshel, G., Shepon, A., Makov, …
Harvest yield of cereals ≈ 0.4 kg / m2 76189 FAO (Food and Agricultural Organization) …
Green house gas emissions for beef production 10 ± 2 kg CO2e equivalent / Mcal 78596 Eshel, G., Shepon, A., Makov, …
Global calorie supply from beef 39 kcal / capita / day 79776 FAO (Food and Agricultural Organization …
Annual cultured grass carp mass ≈ 5.70 × 109 kg / yr 80400 FAO (Food and Agriculture Organization …