Nasa Satellite Photo Comparison from 1970 to 2016
The satellite photo comparison show Arctic Sea ice shrinking to record lows. Though the ice in the Arctic Ocean, the coldest of all the five oceans of the world, routinely shrinks during the summer only to increase during the winter, these satellite photographs showcase just how much things have changed in Earth’s climate.

The top photo shows the Arctic in the summer of 1984, a year in which the ice decline was roughly considered to be standard. The bottom photo displays the Arctic ice shrinkage in 2016. The contrast between the photos is unmistakable, yet also unbelievable.