Many of the models used to make climate projections are unable to dynamically reflect permafrost. A new study involving experts from the Alfred Wegener Institute has for the first time applied an extensive [...] extensive ensemble of 17 climate models to quantify how said models portray permafrost in warm climates. Drawing on a comparison of models for a warm period during the mid-Pliocene roughly three million years [...] Proceedings of the National Academy of Sciences the researchers conclude that the near-surface permafrost extent was less than 10 percent of that seen in the preindustrial era.

investigation into the rapidly changing permafrost regions in the northern hemisphere. The project seeks to answer pressing questions about the role of permafrost thaw in the global climate system, and [...] the people living in these regions. The culmination of this ambitious endeavour is the "Arctic Permafrost Atlas," a ground-breaking publication set to launch during the Arctic Circle Assembly on October

effects and causing the permafrost to thaw in step with climate change. As such, taking decisive action today is all the more important if our goal is to preserve as much permafrost as possible. The study [...] Permafrost soils store large quantities of organic carbon and are often portrayed as a critical tipping element in the Earth system, which, once global warming has reached a certain level, suddenly and

Award 2024 from the International Permafrost Association (IPA) to honor his outstanding lifelong commitment and accomplishments in permafrost research and for the permafrost research community.

nations. Find out more Ice Climate Arctic Permafrost The cold regions of our planet are home to massive areas in which the ground is permeated by frost: permafrost soil. However, climate change is steadily [...] steadily reducing the scope and scale of the permafrost – with a host of grave consequences. Find out more Sea Arctic Antarctic North Sea Marine plastic debris Even in the most remote parts of the ocean, like

simulation of erosion and mass wasting processes in permafrost landscapes under a warming climate. Current land surface models used to simulate permafrost dynamics are not capable to represent soil erosion [...] between erosion-induced landscape changes and permafrost degradation? In order to answer these crucial questions we will extend and improve the permafrost model CryoGrid3 developed by the Alfred Wegener [...] Background Impacts of permafrost degradation (Graphic: Alfred-Wegener-Institut) Almost a quarter of the land surface of the northern hemisphere of the earth is characterized by permanently frozen soils

further develop the CryoGrid permafrost model and apply it to thermokarst processes in ice-rich permafrost. He also deals with the question of the extent to which the permafrost region in the northern hemisphere [...] help provide a more realistic picture of permafrost thawing. AWI press release original press release Paper entitled "Sensitivity of ecosystem-protected permafrost under changing boreal forest structures [...] the workshop were the impacts of rapid permafrost degradation to the infrastructure and the results, potentials, objectives and plans on modelling of permafrost processes. Furthermore there were sessions

order to identify and quantify potential risks for ecosystems and infrastructure emerging from permafrost degradation. Many landforms throughout the Arctic such as thermokarst lakes, thermoerosion gullies [...] the Arctic. In remote and vast Arctic areas satellite and aerial imagery provide insights into permafrost thaw processes on a regional scale which we would not gain from measurements at the surface. Remote [...] sensing component of the project, therefore, addresses the following research questions: 1. How do permafrost erosion features respond to changes in meteorological conditions? 2. What are the factors controlling

(Graphic: Alfred-Wegener-Institut) Global warming and the thawing of permafrost not only lead to destabilization of the soil in the permafrost regions of the Arctic, but also to a tendency to increasingly delimit [...] risk assessment is therefore crucial from an economic as well as ecological point of view. The permafrost model CryoGrid, which has been further developed as part of PermaRisk, is intended to help predict

Outreach Lesson Plan "Permafrost in the Arctic" The lesson plan “Permafrost in the Arctic” explores the subject of degrading permafrost and its effects on men and environment from different spatial and [...] changed in the Arctic over the last decades? What is permafrost? How does thawing permafrost affect the Arctic environment? How does thawing permafrost affect Arctic infrastructure? The teaching material [...] investigate current permafrost research topics or explore the conflict of interests of different Arctic stakeholders. Lesson Plan Permafrost in the Arctic Living in the wild North The Permafrost Risk The Ocean