President Donald Trump is pushing for a Greenland land grab. But warming temperatures could disrupt development in the region ...

Trump is flexing imperialist muscles, but his plan for a hasty peace deal between Russia and Ukraine is incoherent.

The Army's research facility includes a permafrost tunnel - about a third of a mile long - that has Ice Age-era animal bones ...

A Ukrainian government source tells Sky News that Kyiv has agreed the terms of a minerals deal with the US. Meanwhile, the ...