In the EU-15, farming causes almost half of the nitrogen pollution in rivers, 94 % of ammonia emissions and 9 % of total greenhouse gas emissions.
Í ESB-15 veldur búskapurinn næstum helmingi köfnunarefnismengunar í ánum, 94% ammoníaklosunar og 9% af heildarlosun gróðurhúsalofttegunda.