Alaska’s Year Without a Summer

Alaska’s Year Without a Summer

Rosanne D’Arrigo of the tree-ring lab at Lamont-Doherty Earth Observatory in New York recently told the story of Alaska’s year without a summer. She attended the fall meeting of the American Geophysical Union last month in Washington, DC.

Building on Permafrost

Building on Permafrost

When constructing in the Arctic or near-Arctic regions of the world where permafrost dominates, the adage “If it’s frozen, keep it frozen; if it’s thawed keep it thawed” provides a strong foundation. Doing this, however, is one of the greatest challenges for engineers and construction companies that specialize in building in some of the coldest places on Earth.