Antarctic explorers left sea-ice clues

World News Sources
Log books from the early Antarctic expeditions indicate that the area of summer sea-ice around the continent has barely changed in size in a century.

Researchers have studied the records of pioneering explorers, including Captain Robert Scott and Sir Ernest Shackleton. A century ago Captain Scott and Sir Ernest Shackleton were among those who ventured into completely uncharted territory.

They were the bravest explorers of their age. At the time, their voyages brought a totally new understanding of the Antarctic landscape. And now their records are giving scientists new data on the impacts of climate change. Read more…