If everyone agreed to become vegetarian, leaving little or nothing for livestock, the present 1.4 billion hectares of arable land (3.5 billion acres) would support about 10 billion people,
The Future of Life (ed. Vintage, 2002) - ISBN: 9780375414565
If everyone agreed to become vegetarian, leaving little or nothing for livestock, the present 1.4 billion hectares of arable land (3.5 billion acres) would support about 10 billion people,
The Future of Life (ed. Vintage, 2002) - ISBN: 9780375414565