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Articles on Sea ice

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Giovanna Stevens grew up harvesting salmon at her family’s fish camp on Alaska’s Yukon River. Climate change is interrupting hunting and fishing traditions in many areas. AP Photo/Nathan Howard

Arctic Report Card 2023: From wildfires to melting sea ice, the warmest summer on record had cascading impacts across the Arctic

The early heat melted snow and warmed rivers, heating up the land and downstream ocean areas. The effects harmed salmon fisheries, melted sea ice and fueled widespread fires.
Landfast ice ‘breaks out’ Justin Chambers/AAD

Fractured foundations: how Antarctica’s ‘landfast’ ice is dwindling and why that’s bad news

More trouble in Antarctica: the extent of frozen seawater fastened to the coast (called landfast ice) hit a record low in March 2022. If this trend persists, the consequences could be catastrophic.
The Weddell Sea helps power the great ocean conveyor, which moves heat, carbon dioxide and nutrients around Earth’s ocean basins. Janelle Lugge/Shutterstock

Slowing deep Southern Ocean current may be linked to natural climate cycle – but that’s no reason to stop worrying about melting Antarctic ice

Freshening seawater around Antarctica is disrupting a global ocean conveyor which regulates the climate.
The sound of the marine environment has been underestimated, mainly because it is not audible to the human ear. (Shutterstock)

The ocean is not a quiet place

The ocean is often considered a silent universe. But many recent studies highlight the importance of the soundscape for many marine species, both large and small.
Sea lions, otters and birds were some of the many wildlife species that were hit hard by the 1989 Exxon Valdez oil spill in Alaska. Oil spills like these expose the wildlife to new contaminants and can be fatal. (AP Photo/Jack Smith, File)

Once the slick is gone: New tool helps scientists monitor chronic oil in Arctic wildlife

ToxChips study the changes in the DNA of animals exposed to contaminants, like those found in oil spills.

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