Whether ice-breaking large ships or submarine cargo vessels are the only alternatives for this, or whether other variations also have a part to play will be determined by the research that will be undertaken during the next few years.
Nokuba isikhenkcezi esophukayo senqanawa ezinkulu okanye umthwalo wolwandle lwezitya zizinto ekungabhenelwa kuzo kule nto okanye obunye ubomi obutshintshileyo nabo bunendima omabuyidlale lakuxhomekeka kuphando olwakuthatyathwa kwiminyaka ezayo