Why Greenland? Remote but resource-rich island occupies a key position in a warming world

The world's largest island is now 'central to the geopolitical, geoeconomic competition in many ways,' partly because of climate change, said Ohio University security and environment professor Geoff Dabelko.

Remote, icy and mostly pristine, Greenland plays an outsized role in the daily weather experienced by billions of people and in the climate changes taking shape all over the planet.

Greenland is where climate change, scarce resources, tense geopolitics and new trade patterns all intersect, said Ohio University security and environment professor Geoff Dabelko.

The world's largest island is now "central to the geopolitical, geoeconomic competition in many ways," partly because of climate change, Dabelko said.

Since his first term in office, President-elect Donald Trump has expressed interest in acquiring Greenland, which is an semiautonomous territory of Denmark, a longtime U.S. ally and a founding member of NATO. It is also home to a large U.S. military base.

Think of Greenland as an open refrigerator door or thermostat for a warming world, and it's in a region that is warming four times faster than the rest of the globe, said New York University climate scientist David Holland.

Locked inside are valuable rare earth minerals needed for telecommunications, as well as uranium, billions of untapped barrels of oil and a vast supply of natural gas that used to be inaccessible but is coming less so.

Many of the same minerals are currently being supplied mostly by China, so other countries such as the United States are interested, Dabelko said. Three years ago, the Denmark government suspended oil development offshore from the territory of 57,000 people.