Plant stoichiometric flexibility controls the CO2 fertilization effect on ecosystem carbon accumulation.

Multiple models needed to capture true uncertainty of soil carbon fate in a changing world.

Novel bromide tracer experiments are used to develop a model of subsurface flow and transport within ice-wedge polygons.

Field observations and model simulations confirm the presence of unfrozen permafrost in shrub-dominated landscapes.

Worldwide trait database addresses long-standing questions about trait-environment relationships and provides an unprecedented digital resource to inform Earth system models.