https://www.youtube.com/watch?v=vVX-PrBRtTY

https://m.xkcd.com/977/

    It was created to provide a visually pleasing alternative to the Gall-Peters projection, which some schools and socially concerned groups have adopted out of concern for fairness. Their priority is to show developing countries in the tropics and developed countries in the north with correctly proportioned sizes.

    In addition to being rigorously equal-area throughout, other Equal Earth projection features include:

    •  An overall shape similar to that of the Robinson projection. (The Robinson, although popular and pleasing to the eye, is not equal-area as is the Equal Earth projection).

    •  The curved sides of the projection suggest the spherical form of Earth.

    •  Straight parallels that make it easier to compare how far north or south places are from the equator.

Greenland has at least two reasons to be worth more then it is now: in the future when the north polar ice sheet melts. The arctic circle becomes a navigable ocean. It's a short way from USA and Europe to Asia (or Russia).

Secondly removing the ice means it's much easier to get the essential hydrocarbons underneath of which there are lots of and which many countries will want.

So the reasons for Greenland is geography, security, control, trade and economy. And by thinking long term. It can also explain some off handed and mocked comments about Canada too.