IMAGINE for a moment that the world’s entire available agricultural land is represented by a soccer field, just like those in Qatar where Argentine Maestro Lionel Messi is weaving his magic as the championship stages of the World Cup play out.
Only the penalty area – the small rectangles in front of each goal – would comprise arable land that can grow human-edible food.
The remainer is “absolute grassland”, which cannot be converted into arable land to grow food for humans, because it is either too wet or too dry or too steep or too deficient in soil quality etc.
And, even from…