World’s Largest Iceberg Drifts Slowly Towards South Georgia

The world’s largest iceberg is slowing heading towards the island of South Georgia, where it may have serious affects on local wildlife. 

Iceberg A23a is so big that it ihard to visualize: at 1.1 million acres in area, it is about 75 times larger than Manhattan (and shrinking). Fornow, it measures about 40 nautical miles by 32 nautical miles on a side, and it weighs about one trillion tonnes. Its sheer sides tower more than 1,300 feet above the water, and chunks regularly break …