One important point I think worth highlighting about the numbers is their differential growth rates. That is, for instance, not only are there many more farmed fish than pigs or cows but the annual increase in the number of farmed fish is much greater than that for pigs or cows
Agreed that this is very important. The scale of a problem should be defined to include (your projections for) its total over time that you think your actions could influence. Relatively few animals could be used in a given country now, but because of expected growth, the scale could actually be huge, and our cost-effectiveness estimates should take such projections into account.
Agreed that this is very important. The scale of a problem should be defined to include (your projections for) its total over time that you think your actions could influence. Relatively few animals could be used in a given country now, but because of expected growth, the scale could actually be huge, and our cost-effectiveness estimates should take such projections into account.