Polar bear on sea ice. Alaska, Beaufort Sea. / Courtesy NOAA National Ice Center, collection of Dr. Pablo Clemente-Colon

Record low sea ice — dramatically small Arctic sea ice maximum in March 2017

Arctic sea ice maximum hit a record low in March 2017. Arctic sea ice covered less area than it has any other year since satellite records began in 1979. This record low is the newest in a three-year string of record low Arctic sea ice maximums. Sea ice grows and dwindles with the polar seasons. […]

Mendenhall Glacier ice cave

A forest revealed under glacial ice

Laura Nielsen for Frontier Scientists – Alaska’s Mendenhall Glacier is shrinking, and its retreating ice has bared the remains of an ancient forest. Preserved stumps and trunks, many still rooted and even bearing bark, sit in a gravelly mix of stone churned up by the glacier. The trees are being exposed to open air for […]