Alaska Blue Ice

As the cruise ship cruised through the passage along the Alaskan coast line, some chunks of crystal blue ice floating on the oceans surface caught my eye. I couldn't stop wondering why they looked so blue as opposed to the normal white or clear ice.

Sitting on the balcony of our cabin in front of the Hubbard Glacier (below), After some research, I found the answer. They are chunks of ice that fell off a blue glacier through a process called ice calving or glacier calving. I could hear the loud and booming sounds of the ice cracking a couple of miles away from the Glacier.

The post below shows an extraordinarily deep blue iceberg which brought back my concern about global warming. It is believed that the iceberg was formed from a large rift and calving, but how much of this is from natural causes and how much of this is the outcome of global warming?

I have been a fan of NASA's videos for a long time and this article (https://www.nasa.gov/feature/esnt/2020/the-anatomy-of-glacial-ice-loss ) provides a deep dive on glacier ice loss via several videos, although it doesn't explain why the Godzilla iceberg in Alaska is blue. I hope we can understand and take right actions to restore natural balance and preserve natural wonders.