"(...) roughly half the calories farmers grow are now fed to livestock, and the demand for animal products is rising fast. Without a radical change in the way we eat, by 2050 the world will need to grow around 50% more grain. How could we do it without wiping out much of the rest of life on Earth?"
We can't, George. It's either meat or the survival of life on the planet.
@antanicus i think poor people won't stop eating mostly very cheap and bad meat until they're poor, i think we'll have to take the lands and close the farms where animals live and die badly and i wish i already translated this to english, https://bu.noblogs.org/ultimatum/