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 …

Permafrost regions at high latitudes and altitudes store about half of the Earth's soil organic
carbon (SOC). These areas are also some of the most intensely affected by anthropogenic …

Chapter 2, building on prior assessments1, provides a global assessment of the observed
impacts and projected risks of climate change to terrestrial and freshwater ecosystems …

Climate tip** points occur when change in a part of the climate system becomes self-
perpetuating beyond a warming threshold, leading to substantial Earth system impacts …

Chapter 2, building on prior assessments, provides a global assessment of the observed
impacts and projected risks of climate change to terrestrial and freshwater ecosystems …

Permafrost carbon feedback (PCF) modeling has focused on gradual thaw of near-surface
permafrost leading to enhanced carbon dioxide and methane emissions that accelerate …

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 …

Abstract Evidence suggests that 5–15% of the vast pool of soil carbon stored in northern
permafrost ecosystems could be emitted as greenhouse gases by 2100 under the current …

Permafrost thaw liberates frozen organic carbon, which is decomposed into carbon dioxide
(CO2) and methane (CH4). The release of these greenhouse gases (GHGs) forms a positive …

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