izentrop wrote:I thought rather: who claims that?
It's me !
To my knowledge (I did not look either ...) but again nobody agrees on the report / diagnosis, In my opinion, there is a lot of denial about the unsustainability of the current intensive agriculture.
We are more in the "as long as I win, I play" and after me the flood.
The agris make investments corresponding to proven but not sustainable techniques. Even if the agri operates an awareness, it is locked by its previous investments.
Nobody (I did not look too much either ...) does a catalog of good practices on a large scale, allowing:
to do without chemical fertilizers,
of pesticides or reduce sharply,
to reduce water consumption,
ensure the durability of machines
etc ..
Given the scales, I do not think we can do without agricultural machinery.
Without changing the existing machine park, the fuel could be of plant origin.
Synthetic or fossil fertilizers can be done without.
Currently, faeces are not sufficiently reintroduced into the vegetative cycle.
Soil cover is not practiced enough, direct seeding either.
There are plenty of areas for progress for agriculture leading to sustainable agriculture but things are not moving, out of conformism, denial and "as long as I win, I play".
What is possible in a particular garden is possible on a large scale. It is probably necessary to adapt the practices but I do not see why it would not be possible.
For climate, you know my opinion, it warms in trend but the earth has experienced worse alone (without us). It is likely that the trend naturally reverses, or not, in my opinion no one knows, not even the consensus, not to mention the consensus.
The Sahara was green, Greenland was a little cultivable ... The climate moves all the time.
Must do with and adapt ...