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Beef produces 85 kg CO2e per kg of food. Tofu produces 2.9 kg CO2e per kg of food.
(ourworldindata.org)
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
I'm afraid they're straight up lying. The paper doesn't mention cotton even once. See for yourself in the paper here or the database here. It doesn't even specify one type of feed for the beef cattle, because it is a meta-analsyis of hundreds of others papers about specific practices in specific areas. It takes a weighted average of those depending on how much of the world's production the area studied in each one accounts for.