A downward spiral of the Arctic’s ecological health and climatic conditions continued in 2023, causing problems for people, plants, and animals, according to a new NOAA report.
Greenland
El estallido de burbujas acelera el deshielo de los glaciares
Tener en cuenta el efecto burbuja podría mejorar las estimaciones sobre el deshielo de los glaciares submarinos y prever mejor su contracción a medida que se calientan los océanos.
Popping Bubbles Make Glaciers Melt Faster
Accounting for the newfound bubble effect could improve estimates of how sea-terminating glaciers melt underwater—and better anticipate their shrinkage as oceans warm.
Melting Glaciers as a Source of Lead in Coastal Waters
New experiments show how lead circulates through glaciers, meltwater, and sediments in polar environments.
Marine Sediments Reveal Past Climate Responses to CO2 Changes
Climate records stored in marine sediments reveal different ice sheet and ocean responses to falling atmospheric CO2 concentrations from the warm Pliocene to the ice ages of the Pleistocene.
Greenland Was Much Greener 416,000 Years Ago
A fresh analysis of a historic ice core has revealed evidence of a much smaller ice cap.
Herbivore Diversity Helps Maintain Arctic Tundra Diversity
A long-term experiment in southwestern Greenland reveals that the presence of musk oxen and caribou helps stave off declines in Arctic tundra diversity brought on by climate change.
Going with the Flow: New Tool Improves Sea Level Projections
By bringing together multiple data sources a new statistical method aims to improve the accuracy with which we might predict future ice melt in Greenland.
Redefining “Glacial Pace”
As Earth’s climate warms, glaciers and ice sheets are retreating, cracking, and adding to sea level rise at record speeds.
What We Know and Don’t Know About Climate Tipping Elements
As climate change continues, parts of the Earth system such as ice sheets, frozen soils, or the Amazon rainforest could shift—some quickly, some slowly—after crossing key thresholds or tipping points.