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Sea Ice Loss

All articles tagged with #sea ice loss

Arctic Ocean hits irreversible chemical tipping point as ice loss drains nitrate
environment1 day ago

Arctic Ocean hits irreversible chemical tipping point as ice loss drains nitrate

Two decades of data show sun-driven nutrient loss after sea ice retreats triggers benthic denitrification on shallow Arctic shelves, causing irreversible nitrate depletion and pushing the Arctic Ocean past a tipping point around 2009. The nitrate famine is already reshaping the food web from plankton to fish, seabirds, and marine mammals, with potential impacts on North Atlantic fisheries and broader marine ecosystems, and researchers say the system is unlikely to revert to its previous state without major changes in ice cover.

via Oceanographic Magazine|
#arctic-ocean#benthic-denitrification#climate-change
Urgent Warning: Rapid Changes in Antarctica Threaten Global Stability
climate-change9 months ago

Urgent Warning: Rapid Changes in Antarctica Threaten Global Stability

Antarctica is experiencing rapid and potentially irreversible environmental changes, including significant sea ice loss and warming, which threaten to accelerate sea level rise and cause global ecological and societal impacts. These changes are driven by human-induced climate change and could lead to catastrophic consequences if greenhouse gas emissions are not drastically reduced.

via WIRED|
#antarctica#climate-change#climate-crisis
"Arctic on Track to Become Ice-Free Within a Decade, Scientists Warn"
climate-change2 years ago

"Arctic on Track to Become Ice-Free Within a Decade, Scientists Warn"

A new study suggests that the Arctic could be "ice-free" within the next decade, with the first ice-free day potentially occurring 10 years earlier than previously projected. This loss of sea ice is attributed to greenhouse gas emissions, which lead to increased heat absorption by the ocean and subsequent ice melt. The consequences of an ice-free Arctic include disruptions to the ecosystem, challenges for Arctic animals, and potential threats to human communities due to coastal erosion. While the loss of sea ice may be unavoidable, efforts to reduce emissions could help mitigate the extent and duration of ice-free conditions in the Arctic.

via CBS News|
#arctic#climate-change#climate-future
2023: A Brutal Summer of Record Heat Waves in 10 Alarming Maps and Graphs
climate-change2 years ago

2023: A Brutal Summer of Record Heat Waves in 10 Alarming Maps and Graphs

This summer has seen a series of alarming climate events, including record-breaking temperatures, heat domes, and devastating wildfires. Global temperatures continue to rise, with July 2023 being the hottest month on record. The loss of Antarctic sea ice and soaring sea surface temperatures are also concerning. The effects of El Niño are expected to exacerbate these trends in the coming years. Urgent action is needed to reduce carbon emissions and mitigate the impacts of climate change.

via WIRED|
#climate-change#extreme-weather#global-temperatures