US EditionRapid loss of Antarctic ice may be climate tipping point, scientists say
- Scientists warned on Wednesday that Antarctica is experiencing rapid and potentially irreversible changes including a dramatic decline in sea ice and a slowdown of ocean currents.
- These changes are driven by climate warming linked to greenhouse gas emissions, with multiple sources—including historical records and geological samples—supporting the observed trends since 2014.
- The Antarctic winter sea-ice edge has retreated about 120 kilometers on average since 2014, with decline rates 4.4 times faster than Arctic reductions, impacting ice-dependent species like emperor penguins.
- Lead scientist Nerilie Abram warned that the decline of Antarctic sea ice triggers a continuing cycle that could cause severe consequences for ecosystems and contribute to sea levels rising by several metres.
- The study suggests that reducing greenhouse gas emissions can slow changes but may not prevent some irreversible impacts, including the possible extinction of emperor penguins by 2100.
54 Articles
54 Articles
Antarctica is in extreme peril
Seen from space, Antarctica looks so much simpler than the other continents — a great sheet of ice set in contrast to the dark waters of the encircling Southern Ocean. Get closer, though, and you’ll find not a simple cap of frozen water, but an extraordinarily complex interplay between the ocean, sea ice, and ice sheets and shelves. That relationship is in serious peril. A new paper in the journal Nature catalogs how several “abrupt changes,” l…
The Climate Is Officially Getting So Bad That It's Unrecoverable
The melting of Antarctic sea ice may be even worse than we realized. New research suggests that the region is experiencing rapid and abrupt disruptions that could represent a global climate "tipping point," past which the effects of climate change become irreversible and accelerate in intensity. "Antarctica is showing worrying signs of rapid change across its ice, ocean and ecosystems," Nerile Abram, a professor at the Australian National Unive…
Mark Cuban Says Insurance Industry 'Concerned About Melting Ice' As Antarctic Ice Loss Hits 'Potentially Irreversible' Tipping Point - Allstate (NYSE:ALL), Autoliv (NYSE:ALV)
Mark Cuban flagged growing concerns within the insurance sector as Antarctic ice loss may have reached a dangerous tipping point.
A new study published in Nature warns that loss is accelerating and is close to a turning point with global impacts
Climate researchers are observing signs of abrupt changes in Antarctica. According to the authors of a new study, global warming is approaching a threshold at which such a large part of the ice sheet could melt that global sea level is rising by several metres - and development continues to intensify itself.
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