Forecasting potential global environmental costs of livestock production 2000-2050

Compares the contributions of the global livestock sector in 2000 with estimated contributions of 2050 to three important environmental concerns: climate change, reactive nitrogen mobilization, and appropriation of plant biomass at planetary scales. Concludes that the livestock sector alone may occupy or exceed humanity's "safe operating space"‌ in each of the three domains and urges corresponding governmental action.