Looks really good Andy. Just a couple of points – why did UNFCCC choose GWP100? It is an obvious question to which I am sure you know the answer!
Graph showing alternative metrics for CH4 needs labels. Graph showing alternative meat products needs labels on the meat categories LH histogram = pork I think, RH = beef. What are respective values for N2O when using the alternative metrics? Although they may not change much it would be useful to state what they are.
Be good to discuss priorities for research in this area. I don’t think it is simply comparing the LCA of milk using different metrics since in generality we know the answer. What research would drive a more informed debate about what metric to use from an NZ perspective?
