Although he did not mention it during his campaign, since taking office, President Donald Trump has repeatedly suggested the U.S. should buy or seize Greenland – the largest island in the world, and part of the Kingdom of Denmark. A U.S. Geological Survey study estimates that there are 31 billion barrels of oil in eastern Greenland, and beneath the ice are also rare earth metals needed for electric cars, batteries, and computers, as well as uranium. We talk to two Greenland experts, Paul Bierman, a professor at the University of Vermont (pictured) and Anne Merrild, who grew up on the island and is now a professor at Aalborg University in Denmark, about what role minerals and oil are playing in the politics – and potential take-over – of Greenland. Local elections on March 11 may help decide whether prohibitions remain on the extraction of oil and gas and uranium on the island.