The two largest U.S. national forests, both in Alaska, have low wildfire risk and provide crucial forest carbon stocks and biodiversity benefits.
Carbon cycle models quantify relationships between emission scenarios and resulting atmospheric concentrations, but are the projections credible? New analyses find grounds for both hope and concern.
Models simulating the nitrogen cycle track its multiple chemical forms but tend to report a subset that can be compared with available field measurements.
Climate change and CO2 fertilization can increase both growth and mortality of trees. The net effect on forest biomass depends on that trade-off, which long-term studies in Switzerland reveal.
Solar engineering is not a substitute for mitigation, and concerns about its risks and unintended impacts are supported by the recent discovery of overlooked atmospheric chemical feedback.
Remote sensing measurements for water vapor isotopic composition enable us to assess how convective aggregation influences the atmospheric hydrological cycle.
Limited monitoring of methane emissions from tropical wetlands could be obscuring these environments’ role in climate change.
Changing climate in the Arctic leads to a shorter snow season but deeper snow in the depths of winter. Under the insulating snow, biological processes are accelerated leading to higher nutrient availability and carbon losses.
Ocean Drilling Program cores and helium isotopes put better constraints on the ocean circulation in the north Pacific.
Slow slip phenomena on subdaily scales, captured by seismic and GNSS data, show that low-frequency earthquakes are incidental to larger magnitude slow earthquakes, in which aseismic slip dominates.