It’s definitely easier to mine in Australia.
But you can do both. It’s about marginal profitability, not absolute.
Do people think we must pick just one place to mine?
Maybe, people previously thought it was not worth it to mine in greenland and thats why there is no noticable mining operation. But what do i know about cost-ratio or thinking.
You can do both, but why would you? It's not like we've tapped out Australia. And until we have, why bother with Greenland if the same money invested in Australia, or Sweden, or Canada would yield more profit?