Maybe, that's why they want Greenland so bad. Low temperature, many free spaces, no significant nature and if there is one, not enough citizen who can complain. And if they still need water for cooling, there is probably enough from the melting ice they can use.
All the money they save on water cooling will be spent on massive undersea fiber lines to move the data to and from the island.
No, datacenters are placed near cities because the biggest concern is workforce.
1. Who is "they"?
2. Alaska has all of those things. (Though there's plenty of "significant nature" in both Greenland and Alaska.)