Background: EU politicians are challenged finding compromises on CAP reform that concurrently meet the objectives of the Farm to Fork and Green Deal. There are also challenges at the technical level since the data is not always available, is inconsistent or even conflicting. Some goals are straightforward: get consumers to eat less meat and produce animals with reduced emissions and use of antimicrobials. However, it is more complex than simply adding sustainability to the least cost feed formulation.  For example, some call for turning leftover human food into animal feed, thus concurrently solving the food waste problem, but that does not work across species and has its own complications. Plant Protection: Other conflicts include re...