Beginning of Essay
Having considered some of the ways that humanity is destroying its inheritance, we can look more closely at the concept of "." All too often, is thought of simply as crowding: too many people in a given area, too high a population density. For instance, the deput ....

Middle of Essay
.... habitable portion is just a little over half the continent's area, giving an effective population density of 117 per square mile. That's still only about a fifth of that in the United Kingdom. Even by 2020, Africa's effective density is projected to grow to only about that of France today (266), and few people would consider France excessively crowded or overpopulated. When people think of crowded countries, they usually contemplate places like the Netherlands (1,031 per square mile), Taiwan (1,604), or Hong Kong (14,218). Even those don't necessarily signal —after all, the Dutch seem to be thriving, and doesn't Hong Kong have a booming economy ....