Photo of sea ice floes

Smoke from Western wildfires can influence Arctic sea ice (Colorado Arts & Sciences Magazine)

July 27, 2022

New CU Boulder research by Patricia DeRepentigny, Alexandra Jahn, and others finds that the presence of clouds—or lack thereof—caused by the smoke of wildfires thousands of miles away can either help protect or endanger Arctic sea ice.

Small chunks of melting ice float in a dark blue sea.

Increase in fresh water in Arctic Ocean could affect global climate systems (The Narwhal)

Aug. 28, 2020

A new study, led by Alexandra Jahn, shows increased precipitation and ice melt caused by climate change have left Arctic waters less salty. Repercussions will be felt much farther south.

Sea ice in the ocean in northern Baffin Bay, September 2008. Photo by Alex Jahn.

Increasing Arctic freshwater is driven by climate change (CU Boulder Today)

July 29, 2020

New, first-of-its-kind research from Rory Laiho and Alex Jahn shows that climate change is driving increasing amounts of freshwater in the Arctic Ocean, which will lead to increased freshwater moving into the North Atlantic Ocean, which could disrupt ocean currents and affect temperatures in northern Europe.