We already know that reducing the intake of meat would reduce carbon emissions. Now studies show the scale of that effect. Reducing the production of red meat would have a larger effect on carbon emission cuts than reducing cars on the roads.
The heavy impact on the environment of meat production was known but the research shows a new scale and scope of damage, particularly for beef. The popular red meat requires 28 times more land to produce than pork or chicken, 11 times more water and results in five times more climate-warming emissions. When compared to staples like potatoes, wheat, and rice, the impact of beef per calorie is even more extreme, requiring 160 times more land and producing 11 times more greenhouse gases.