I went to college in New Orleans, so over the years I've paid attention when scientists said that it was certain at some point that a storm would cause the levees to fail. I also heard about what happened historically when the levees failed in other parts of Louisiana.
All this information was available to anyone who lived in New Orleans. Yet, after Katrina, amazingly, people were angry that no one told them this was going to happen.
Again, with global warming, on a much larger scale, the information about what's coming is available to anyone. But many people push it away. It's too heavy to really contemplate. We all have problems in our own lives, things to worry about on a much smaller scale, to really be able to incorporate the kinds of changes such disasters will bring about into our thinking.
With that as background, I highly recommend reading this article in the NY Times about what's happening in the Antarctic.