cyberdad wrote:
I think there's vast tracts of land unoccupied across the globe but there are reasons they are unoccupied.
1. Climate is inhospitable
2. Soils aren't arable (often due to overfarming leaving little or no topsoil left
3. No water (a big issue)
4. Land lacks natural resources
Here in Australia almost 90% of the population live on a thin strip of land along the coast. Almost nobody lives in the bush, it's akin to Alaskan wilderness, Siberia, Gobi or Sahara desert...
Secondly migrants to western countries choose to live in cities not in regional areas. Young people in regional/rural areas across the world are moving to the cities (internal migration). Rural towns are becoming ghost towns.
So population increase only puts pressure on the small amount of land people are willing to live on...
One thing that seems for sure in America, is that people are willing to live in any environment. Wherher it's the tundra of Alaska or the scorching barren desert of Nevada.
I remember when we were driving through Nevada once, one of the passengers said, "no wonder they chose this environment to set off nuclear bombs". In other words it's so barren it looks the same before and after an atomic explosion. But millions of people choose to live there and equally inhospitable areas like Arizona. Some even choose to live in small isolated towns in the middle of the desert.
But most of the US land mass is basically uninhabited. Even areas that are much more habitable than areas like Alaska and Nevada.
Where I live now in the Pacific Northwest, vast areas of what once was lush forest, was turned into Seattle and Tacoma and Portland and all the places in between. Yet most of the Pacific Northwest is still lush forest.
An interesting thing though is that the same wildlife that exists in the undeveloped wilderness areas, exists in the developed areas too. I've seen just about every indigenous creature close to home. Eagles, beavers, racoons, deer, elk, owls, possums, cyotes, woodpeckers, ducks, geese, frogs, seals, sea lions, orcas etc etc.