Property law. Good luck "sharing the land" peacefully with 8 billion people. Have you ever been a country without zoning laws (let alone property ownership)? It is chaos. Very little sharing to speak of. More like problems are settled with guns instead of contracts.

Property law in Canada is a little more subtle than "You bought it, you own it"; land is provided under grant by the Crown for specific uses under certain conditions, and that grant can be transferred by sale of ownership.

You don't own the land so much as you own the right to use it under strict provisions.

http://www.thecanadianencyclopedia.com/en/article/property-l...

And, even in the US, you still typically have to pay property taxes to maintain ownership, have to obey zoning laws, may need to maintain the property within certain conditions based on HOAs etc., probably don't own mineral rights, and certainly not airspace at least above a certain I'll-defined distance.

Counterpoint: Houston has very strong property ownership laws, but zero zoning, and it's doing just fine.

Adverse possession is part of that property law.

> Have you ever been a country without zoning laws

Harris County, Texas is a fair example of a "country" (1,777 sq miles, population 4.7 million) that has no zoning laws. They don't shoot each other any more than any other US city and it's a place where verbal contracts are still binding.

>Property law

Rights do not derive from law. Owning slaves used to be legal, but that didn't give slaveholders the right to own humans.

>Good luck "sharing the land" peacefully with 8 billion people.

It's straightforward enough. Tax the value of the unimproved land at 100%. Use the proceeds to build roads, treat the sick, dole out welfare, pay pensions, etc. and all the other stuff our governments already do that they apparently don't have enough money for.

All that is required is a tweak to property law that wrests control over a natural resource.

This would eliminate hoarding and share this huge wealth which is not created, but is captured by the ultrawealthy.