Meat and animal products absolutely are an issue according to a lot of unbiased peer reviewed research.
“Pasture raised” is just as bad according to the Food Climate Research Network:
“This report concludes that grass-fed livestock are not a climate solution. Grazing livestock are net contributors to the climate problem, as are all livestock. Rising animal production and consumption, whatever the farming system and animal type, is causing damaging greenhouse gas release and contributing to changes in land use. Ultimately, if high consuming individuals and countries want to do something positive for the climate, maintaining their current consumption levels but simply switching to grass-fed beef is not a solution. Eating less meat, of all types, is.”
The WWF on the impact of feed crops for animals
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www.wwf.org.uk/sites/default/files/2017-10/WWF_AppetiteForDestruction_Summary_Report_SignOff.pdf
Includes information on soya:
“Today, protein-rich soy is such an important feed ingredient that the average European consumes approximately 61kg of soy per year, largely indirectly through the animal products that they eat like chicken, pork, salmon, cheese, milk and eggs. In 2010, the British livestock industry needed an area the size of Yorkshire to produce the soy used in feed. “
citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.511.7351&rep=rep1&type=pdf
“Much of the estimated 35% of global greenhouse-gas emissions deriving from agriculture and land use35 comes from livestock production. Livestock production—including deforestation for grazing land and soy-feed production, soil carbon loss in grazing lands, the energy used in growing feed-grains and in processing and transporting grains and meat, nitrous oxide releases from the use of nitrogenous fertilisers, and gases from animal manure (especially methane) and enteric fermentation44—accounts for about 18% of global greenhouse-gas emissions (figure 2).42 This estimate consists of around 9% of global emissions of carbon dioxide, plus 35–40% of methane emissions and 65% of nitrous oxide, both of which have much greater near-term warming potential over several ensuing decades than does carbon doxide (although they have shorter half-lives in the atmosphere). Similar estimates exist of the contributions of UK farming, live-stock production, and the food chain overall, to national greenhouse-gas emissions.45
Health professionals warn that the use of antibiotics early on in the food chain, with farmers administering drugs to animals to promote growth rather than treat disease, is a particular problem”