Yikes, food production requires huge amounts of water and contributes mightily to eutrophication. It behooves us all to figure out ways to slow or reverse this. Because water and land are static resource. And this is all contributing to climate change.
FYI: Beef herds are by far the worst for product greenhouse gas emissions. Interestingly, poultry and pig are much lower.
Half of the world’s habitable land is used for agriculture. Habitable land is the land that is ice- and desert-free.
70% of global freshwater withdrawals are used for agriculture2.
78% of global ocean and freshwater eutrophication is caused by agriculture.3 Eutrophication is the pollution of waterways with nutrient-rich water.
94% of non-human mammal biomass is livestock. This means livestock outweigh wild mammals by a factor of 15-to-1.4
71% of bird biomass is poultry livestock. This means livestock outweigh wild mammals by a factor of more than 3-to-1.5″