At the risk of sounding like a cynic, a lot of that animal intensification on existing pasture uses supplemental feeding with crops that the growing thereof als

At the risk of sounding like a cynic, a lot of that animal intensification on existing pasture uses supplemental feeding with crops that the growing thereof also have a deleterious effect on biodiversity - corn-fed beef, or even worse, dairy cattle being fed palm kernel grown using slash and burn agriculture in rainforest regions. Not to mention the faecal and nitrate pollution of aquifers and rivers due to higher animal numbers in a smaller area. With regards to GHG gas emission, one of the biggest issues with ruminants is methane - but a new approach (patented by scientists from Australia's CSIRO) looks very promising: https://www.stuff.co.nz/environment/climate-news/116683942/government-supports-seaweed-project-to-reduce-cattle-methane-emissions https://www.stuff.co.nz/environment/climate-news/116683942/g...