Notes
Sea ice near Antarctica during the Southern Hemisphere summer in 2019. There is significantly less sea ice around Antarctica this year than ever recorded before.It is deep winter in Antarctica, the time of year that the continent is shrouded in darkness and surrounded by millions of square miles of frozen ocean.
But this year there is a lot less sea ice than ever recorded before. And that is bad news for people around the world, because sea ice helps control how quickly the rest of Antarctica's ice melts, which contributes to global sea level rise.
