‘Five-sigma event’: Why Antarctica’s missing sea ice has scientists worried

Image of Antarctica. Understanding what is happening in Antarctica is an important part of understanding sea-level rise.
The continent of Antarctica. Image by Davepape, Wikimedia Commons.

Over past months, scientists have been observing a baffling drop in sea ice around the frozen continent which, for the first time, has been unable to recover to its usual maximum extent over the cold, dark months of winter.
Jamie Morton, investigates for the NZ Herald. Read the full article here.