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June 14, 2019
Visualization shows circular plasmids (mobile genetic elements) from two ground water samples taken in Oak Ridge, Tennessee (sample F, blue; sample G; green). Using a newly devised method, researchers discovered more than 600 plasmids.
Microbes Retain Toxicity Tolerance After They Escape Toxic Elements
Ground water microbes living outside a contaminated area contain mobile genetic elements that provide them resistance to heavy metals.
June 6, 2019
In the North-Central Atlantic Ocean near the center of the simulation snapshot, a hurricane is visible as a dot of gray and from the cold water (green) it stirred up in the otherwise warm (red) Central Atlantic Ocean.
Watching the Rain in Climate Models
Scientists use supercomputers to determine how reliably a popular Earth system model represents precipitation regionally and globally.
June 6, 2019
To determine key behaviors in a self-healing material—a composite of cement and a polymer—for underground wells, researchers built a simulation that explained molecular-level interactions.
Simulations Shed Light on Self-Healing Cement
A first-of-its-kind computer simulation reveals self-healing cement for geothermal and oil and gas wells performs better than originally thought.
March 21, 2019
Some Bacteria Make a Big Difference in Dryland Wheat Farming
Researchers set out to discover the mechanisms that control the accumulation of PCA under dryland conditions. Led by Melissa LeTourneau, an Office
March 14, 2019
Sampling Guts of Live Moose to Understand How They Break Down Biomass
While previous studies used hunter-killed animals, this study sampled live free-ranging Alaska moose grazing in the wild. By equipping these moose
March 14, 2019
How Injected Microbes Persist in Hydraulically Fractured Shale
The team re-created a shale microbial community in the laboratory. This allowed them to measure microbial activity and fluid chemistry under
March 14, 2019
Fitting a Square Peg in a Round Hole: The Surprising Structure of Uranium Bound in Hematite
While scientists have been studying the binding of uranium to iron-bearing minerals for some time using X-ray spectroscopy, different researchers
February 28, 2019
A Simplified Way to Predict the Function of Microbial Communities
To know how microbial activity varied in response to flooding, the team studied three types of organic matter that are commonly found in three
February 27, 2019
Unexpected Complexity: A 3D Look into Plant Root Relationships with Nitrogen-Fixing Bacteria
Previous studies led scientists to believe the distribution of bacterially derived metabolic by-products within the nodules was uniform. Scientists
February 27, 2019
Maximizing Ozone Signals
Working with simulated and observed surface ozone data within the United States covering a 25-year period, the researchers analyzed how the
February 27, 2019
How Much Water Does the World Use?
Information on human water use is often available only on large space and time scales. To better inform Earth system models and global hydrologic
February 26, 2019
Get to the Root: Tiny Poplar Roots Extract More Water than Their Larger Counterparts after Drought
Knowledge of plant root function under stress is largely based on indirect measurements of bulk soil water or nutrient extraction, which limits
February 26, 2019
First Observation of Methane’s Increasing Greenhouse Effect at the Earth’s Surface
While atmospheric methane concentrations plateaued between 1995 and 2006, they have since increased and are expected to impact the surface energy
February 26, 2019
Who Can Sort the Rain?
The team analyzed twelve disdrometer data sets (including four from the Department of Energy’s Atmospheric Radiation Measurement user
February 25, 2019
Why Toxic Methylmercury Production Increased in a Great Lakes Estuary
In this study, the team used anoxic microcosms with sediments from nearshore areas of Lake Superior’s St. Louis River Estuary. The sediments
February 25, 2019
Gust or Bust: Blustery Winds Important for Modeling Tropical Rainfall
Earth system models struggle to represent some aspects of tropical circulations, leading to offsets from observations in tropical rainfall. In
February 24, 2019
Starving the Oceans
The primary pathway for nutrient-rich, deep ocean waters to return to the surface is in the Southern Ocean surrounding Antarctica, at the Antarctic
February 4, 2019
Controls on Nitrogen Nutrient Availability in the Arctic Tundra
In the Arctic, the amount of nitrogen available strongly influences plant productivity and distribution. In permafrost systems with patterned
February 4, 2019
Coupling Computer Models Shows Interactions among River Water, Groundwater, and Land Surfaces
The research community increasingly recognizes that rivers, despite their relatively small imprints on the landscape, play big roles in watershed
February 1, 2019
New Approach Gets Better View of Carbon Deeper Underground
The soils you find underfoot are typically 5 to 10 percent organic carbon. However, 3 feet and more below the surface, the organic carbon levels
February 1, 2019
Near-Term Ocean Warming Around Antarctica Affects Long-Term Rate of Sea Level Rise
The rapid change now underway on Thwaites Glacier, located in the West Antarctic Ice Sheet, raises concern that a threshold for unstoppable
February 1, 2019
Viruses Must Overcome Challenges to Infect Bacteria in Nature
Building on previous research, scientists from The Ohio State University, Pacific Northwest National Laboratory, and Environmental Molecular
January 20, 2019
Community Matters When Using Algae to Produce Energy
The researchers observed mutualistic interactions between heterotrophic bacteria and two species of biofuels-relevant microalgae,
January 20, 2019
Uncovering the Microbial Food Web in Thawing Permafrost
Large amounts of soil carbon sequestered in permafrost are becoming available for microbial degradation as permafrost thaws. Its fate is unclear;
January 20, 2019
Getting To Know the Microbes that Drive Climate Change
Over the last two decades, scientists have learned a great deal about the impacts of ocean viruses on microbial mortality, carbon and nutrient