If that 40 percent figure was even approximately correct, it raises an interesting question about the consequences of having significantly larger populations in the future.What would the world be like if humans coopted 80 percent of the NPP? Or 100 percent? No one is really sure. At best it might look like the Netherlands or England. totally manicured and under human control liable but with no wilderness and no room for expansion or mistakes. But wait. The Netherlands and England import food, feed, wood, and fiber and, therefore, depend on far more than 100 percent of the NPP of their national areas. Some countries can do that, but the world as a whole cannot (Meadows et al, 1992; 49-50). Importantly, the more the NPP is appropriated for humans and their chosen life forms (corn and cows), the less is left for other species, producing a drastic decline in biodiversity. Is the world totally appropriated and managed by homo sapiens a viable biosphere?. Again, no one knows for sure. But there is reason for thinking it is not (as discussed in Chapter Three)ใ