I made a visualisation trying to demonstrate the scale of animal agriculture (and the suffering caused by it). Unfortunately I can't embed it in a post; go have a look at it here.
Interested to hear what people think of it, and whether this sort of thing is likely to be useful as a persuasive tool. It's nothing groundbreaking - just a re-imagining of some existing graphs published by ACE plus some fancy animations. But anecdotally, some people seem to find it quite powerful.
Henry
For another anecdotal data point - I found that both the contrast between where money is spent and where the suffering happens, and the cumulative death count were highly effective emotionally (the dots animation less so).
However, for me personally, I'm not sure 'number of killed animals' is the best measurement for negative impact. I could imagine viewing an animal farming industry where the animals got to live free and happy lives until their sudden painless deaths as a pretty positive thing - animals in the wild generally live in far worse conditions and it seems unrealistic to expect humans to keep animals in a happy environment if there was no gain from it whatsoever.