Methane (CH4) is produced in many natural systems that are vulnerable to change under a
warming climate, yet current CH4 budgets, as well as future shifts in CH4 emissions, have …

Large quantities of organic carbon are stored in frozen soils (permafrost) within Arctic and
sub-Arctic regions. A warming climate can induce environmental changes that accelerate …

We conducted a model-based assessment of changes in permafrost area and carbon
storage for simulations driven by RCP4. 5 and RCP8. 5 projections between 2010 and 2299 …

Thermokarst is the process whereby the thawing of ice-rich permafrost ground causes land
subsidence, resulting in development of distinctive landforms. Accelerated thermokarst due …

The Community Earth System Model (CESM) is a flexible and extensible community tool
used to investigate a diverse set of Earth system interactions across multiple time and space …

Tip** elements are components of the Earth system which may respond nonlinearly to
anthropogenic climate change by transitioning toward substantially different long‐term …

Permafrost vulnerability to climate change may be underestimated unless effects of wildfire
are considered. Here we assess impacts of wildfire on soil thermal regime and rate of …

The ice-and organic-rich permafrost of the northeast Siberian Arctic lowlands (NESAL) has
been projected to remain stable beyond 2100, even under pessimistic climate warming …

Permafrost degradation poses serious threats to both natural and human systems through its
influence on ecological–hydrological processes, infrastructure stability, and the climate …

Degrading permafrost can alter ecosystems, damage infrastructure, and release enough
carbon dioxide (CO 2) and methane (CH 4) to influence global climate. The permafrost …