I sign the declaration, and I do agree on the main concept, but something that I think might be questionable ,when we talk about such big scale, is the uncertainty related to numbers on global scale. Also the pollution linked to the production of "vegan food" can not be neglect , like for instance the use of nickel in the production of margarine.
So I think that nitrogen and food is a need topic, especially because the rich part of the world has the "time " and the recourses to think and act about it, while people which has no access to clean water and food and that is starving have no time to think about such a problem.
However in the optic of a global scale, I think that there is a need to promote sustainable development.

Thank you.

I agree on most points of this declaration. It makes sense, both from a scientific and from an ethical point of view. I miss, however, an explicit mention of those ecosystems which are suitable for animal production but not for plant production (for example alpine pastures). There is also, in my opinion, an important difference between animal production concentrated geographicaly versus animal production on mixed-production farms. Separating animal production from forage production is, indeed, disrupting the nutrient cycles, causing more demand on one side and excesses on the other side.

Patrick Schleppi