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The United States has a population density of 86 people per square mile. In Britain it's 704, in the Netherlands it's 1075 and in Singapore it's 20,192. You've

• mc32 8y ago
  It just seems wasteful if we were to use more than 5% of all land, much of which is "badlands" and marginal lands. True arable land, which is where our sustenance comes from is much less at around 16% currently.
• AngryData 8y ago
  While im sure they don't utilize all of their available farm land, it is worth mentioning that Britain imports almost 30% of their food, which means they are at or near the limit of sustainably feeding themselves, and even then almost 60% of the world's crop yield is the direct result of fossil fuel derived fertilizer, which we are going to have to give up soon if we don't all want to be cooked alive, which will increase the energy costs of fertilizer production 10 fold. The US would be hard pressed to find similar external sources of food if their population density rose significantly higher. Especially on top of all the desert and arid grassland areas that are pretty poor for farming.