The Canadian Prairies may soon be known as much for their diverse mineral wealth including uranium, nickel and copper, as for their potash endowment and rolling hectares of grain.
NASA has granted a research team from the University of Arizona $500,000 to develop robots able to mine, excavate and even build simple structures on the Moon's surface.
Environment officials and campaigners have called for a global moratorium on deep-sea mining and on issuing new exploration contracts unless marine ecosystems can be effectively protected.
Researchers at the University of Colorado Boulder say there is growing concern about REE concentrations, which are not monitored and there are no water quality standards set for them.