Denmark hopes to pump some climate gas beneath the sea floor

Read MoreDenmark pushed the button Wednesday on an ambitious project that aims to bury vast amounts of planet-heating carbon dioxide gas beneath the North Sea floor in the hope that it can help the Nordic nation and others meet climate targetsDenmark pushed the button Wednesday on an ambitious project that aims to bury vast amounts of planet-heating carbon dioxide gas beneath the North Sea floor in the hope that it can help the Nordic nation and others meet climate targets