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.
carbon cycle
Posted inResearch Spotlights
Gently Down the Stream: Carbon’s Journey from Land to Sea and Beyond
Movement of carbon from land to ocean and atmosphere plays an important, but understudied, role in the global carbon cycle.
Posted inResearch Spotlights
Минимальные свидетельства наличия углерода вечной мерзлоты в реке Колыме в Сибири
Новое исследование показало, что арктические реки в настоящее время переносят ограниченное количество растворенного органического углерода из вечной мерзлоты, что имеет значение для понимания изменения углеродного цикла в регионе и его потенциальной возможности ускорить изменение климата.
Posted inScience Updates
Our Evolving Understanding of Biological Carbon Export
The array of processes and organisms that make up the biological carbon pump has immense influence on Earth’s carbon cycle and climate. But there’s still much to learn about how the pump works.
Posted inResearch Spotlights
Biogeochemical Insights from a Major Amazonian River
Underrepresented in global carbon budgets, tropical rivers like Brazil’s Tocantins are in need of study to establish their baseline characteristics in the face of increasing global change.
Posted inResearch Spotlights
Thin Skin Helps Regulate Ocean Carbon Uptake
Cooler and saltier than even the water just below it, the ocean skin plays a critical role in ocean-atmosphere gas exchange.
Posted inEditors' Highlights
Sensing the Color of Soil for Climate Modeling
The color of soil reflecting the Sun’s rays affects the Earth’s climate and water cycle. Using satellite data that senses many wavelengths improves soil reflectivity estimates, especially in deserts.
Posted inNews
Soil Fungi May Be a Carbon Pool
New research suggests that mycorrhizal fungi take in 13 billion tons of carbon dioxide annually, playing a prominent role in Earth’s carbon cycle.
Posted inEditors' Highlights
Tracking Human CO2 Emissions from Medium-Sized Cities
Atmospheric inverse models, combined with observations, successfully tracked modest CO2 emission reductions in Salt Lake City during the first COVID-19 lockdown in 2020.
Posted inEditors' Highlights
Applying Algal Geometry to Past and Future Environments
Math can be fun when reconstructing the ocean’s past and forecasting the future with algal geometry.