glaciers and sea ice, can be observed directly, most of the permafrost’s melting takes place deep below the surface. However, since the permafrost stores huge quantities of carbon, which is released in the [...] thawing will further worsen global warming. In order to collect reliable, up-to-date information on permafrost thawing, the joint project UndercoverEisAgenten was launched today.

Permafrost
In the future, climate change could abruptly increase the amount of methane released by lakes in the permafrost regions of the Arctic. The explanation: because of thawing permafrost, these

Permafrost
For years now, scientists have been investigating how the gradual thawing of near-surface permafrost, which takes place in the uppermost layers of Arctic soils and in the course of decades [...] another phenomenon, which has only been sporadically investigated: the abrupt thawing of ice-rich permafrost, which can transform entire landscapes in only months of years through subsidence, the formation

(Photo: Julia Boike) Observational data density in the permafrost region is low. At the Samoylov site in the Lena River Delta, Siberia, the mean permafrost temperature was −8 °C, with a zero-amplitude depth [...] layer, temperature down to 26 m in the permafrost. Since the data provide observations of temporally variable parameters that mitigate energy fluxes between permafrost and atmosphere, they are suitable for [...] for use in integrating, calibrating and testing permafrost as a component in earth system models. Science: Prof. Dr. Julia Boike Technique: Niko Bornemann Data and Publications: LTO-Trendviewer LTO-Data

human activity in the Arctic takes place along permafrost coasts. These coasts have become one of the most dynamic ecosystems on Earth because permafrost thaw is now exposing them to rapid change: change [...] fates of organic matter released from thawing coastal and subsea permafrost; (2) assess what risks are posed by thawing coastal permafrost, to infrastructure, indigenous and local communities and people’s [...] system. NUNATARYUK is a H2020 project that investigates the impacts of thawing coastal and subsea permafrost on the global climate, and develops targeted and co-designed adaptation and mitigation strategies

Permafrost
The fate of permafrost - soil that is frozen for 2 or more years - is of huge importance for the global climate because of the large amounts of organic carbon stored in it, which can be released

threat to permafrost ecosystems” (ThinIce) investigates the short and long-term environmental risks associated with the potential release of contaminated industrial wastes due to permafrost thaw. In recent [...] accumulated in the Arctic. For a long time, permafrost was assumed to be a perfect storage for these potentially hazardous wastes. Nowadays, the permafrost thaws Arctic-wide and increases the risk of [...] that characterize intact permafrost ecosystems. to understand the resilience of ecosystems to pollutants (self-healing ability) to assess pollutant mobilization caused by permafrost thaw to develop strategies

Potsdam. Permafrost Arctic Coastal Processes Arctic Coastal Geochemistry The permafrost coasts of the Arctic make up 34 per cent of the world's coastline and represent a key interface for human-environmental [...] Thaw on the Arctic permafrost coasts Prof. Dr. Hugues Lantuit, head of the Arctic coastal erosion research group at the Alfred Wegener Institute and professor for polar coasts at the University of Potsdam [...] high biodiversity and productivity and support indigenous lifestyles. At the same time, Arctic permafrost coasts are a particularly heat-sensitive area. Rising air and water temperatures as well as increasing

sea ice, thawing of permafrost is mostly taking place in the hidden depths of the ground. By causing profound ecological upheaval and destabilizing infrastructure, thawing permafrost has a direct impact [...] Landscapes is indicated by altering polygonal structures and permafrost thaw. Polygons in Northwest Canada indicating the presence and state of permafrost City of Aklavik in the Mackenzie Delta, September 2022 [...] Education and Research (BMBF) is gathering reliable and up-to-date data on the state and rate of permafrost thaw to provide better insights on landscape disturbances and the impact on people living in the

the collected soil samples. Project Information Contact www.moment-permafrost.uni-hamburg.de/en/kontakt.html Website www.moment-permafrost.uni-hamburg.de/en.html Project Duration November 2022 until October [...] MOMENT The project " Permafrost Research Towards Integrated Observation and Modelling of the Methane Budget of Ecosystems," abbreviated as MOMENT, aims to reduce uncertainties in future greenhouse gas [...] This requires a comprehensive qualitative and quantitative understanding of the methane cycle in permafrost regions. In the Blæsedalen Valley on Disko Island, West Greenland, various studies on the current