Taken singly, few of these facts would be new to even the most casualMonbiot reader or the least faithful friend of the Earth, but their accumulation and the connections between them are terrifying. Rarely can a lay audience have heard their implications spelled out so clearly and informally: a global population that was 1 billion in 1800 and 4 billion in 1980 will probably have grown to 10 billion by the end of this century; the demand for food will have doubled by 2050; food production already accounts for 30% of greenhouse gases – more than manufacturing or transport; more food needs more land, especially when the food is meat; more fields mean fewer forests, which means even more carbon dioxide in the atmosphere, which means an even less stable climate, which means less reliable agriculture – witness the present grain crisis in the US.
