The second-largest mass extinction in Earth’s history took place in a period of stresses from non-sulfidic anoxia in shelf areas, together with glacioeustatic sea-level change and climatic cooling.
Biogeochemical cycles, processes, and modeling
Posted inScience Updates
Studying the Societal Dimensions of Atmospheric Carbon Removal
Workshop on Human/Societal Dimensions of a New Carbon Economy with Carbon180; Washington, D.C., 13 February 2019
Posted inResearch Spotlights
A Look at How Long-Banned PCBs Persist in the Ocean
A new study tracks how climatic factors like sea ice cover and ocean circulation affect the life span and distribution of polychlorinated biphenyls in the world’s oceans.
Posted inResearch Spotlights
When the River Meets the Sea: Estuary Sediments and Hypoxia
Scientists know that low-oxygen dead zones are growing worldwide. New research sheds light on what that will mean for estuary systems if trends continue.
Posted inScience Updates
Soil Moisture Data Sets Become Fertile Ground for Applications
An integrated data platform harmonizes many disparate soil moisture data sets to better inform disaster response planners, climate scientists and meteorologists, farmers, and others.
Posted inScience Updates
In Search of Life Under the Seafloor
A multinational research team drilled into the seafloor to see whether chemical processes in exposed shallow mantle rocks could generate nutrients to support life in the subsurface.
Posted inScience Updates
The Fate of Root Carbon in Soil: Data and Model Gaps
Root Trait and Soil Carbon Workshop; Oak Ridge National Laboratory, Oak Ridge, Tennessee, 31 July to 1 August 2018
Posted inEditors' Highlights
The ILAMB System for Benchmarking Land Surface Models
An evolving set of tools helps land surface model developers optimize the realism of their parameterizations for the next generation of weather and climate models.
Posted inResearch Spotlights
Hydrology Dictates Fate of Carbon from Northern Hardwood Forests
As spring snowmelt and fall rains inundate northern hardwood forests with moisture, soil bacteria get moving and increase carbon exports to the atmosphere and into nearby water bodies.
Posted inEditors' Highlights
The Acid Tongue of Climate Change Strikes Our Streams
Clear air policies have led to dramatic reductions in acid rain and improved ecosystem health, but it now appears that climate change could counteract those gains.