Stephen A. Sitch

The paper analyzes linearity in carbon cascade responses across 16 terrestrial biosphere models under elevated CO2, finding varied non-linear behaviors but overall linear ensemble behavior.

The paper explains 60% of global variation in sapwood-to-leaf area ratio using optimality principles linking plant hydraulics and photosynthesis.

The paper quantifies a global soil organic carbon sink of 1.83 petagrams per year from 1992 to 2020, driven by extratropical and boreal ecosystems, highlighting the importance of soil conservation for climate mitigation.