Science Highlights

Researchers have discovered a novel methane-producing microbe that dominates the thawing permafrost of their study site: the Stordalen Mire in Sweden’s Abisko National Park.

New Methane-Producing Microbe Found in Thawing Permafrost

The species and its relatives appear to be prevalent in areas of high methane flux worldwide. Read More »

Aerial view of braided wetlands and tundra typical of the Bristol Bay watershed in Alaska.

Modeling Global Wetlands and Their Methane Emissions

Climate model comparisons show wetlands remain a big challenge. Read More »

Duckweed is a relatively simple plant with fronds (A and B, right) that float on the surface of water and roots that extend into the water.

Biofuels from a Floating Water Weed

Duckweed sequencing reveals insights into genes for lignin, cellulose, and starch production. Read More »

A large portion of the plant cell wall contains cellulose, which consists of sugar molecules organized into cable-like structures called microfibrils.

Making Cellulose More Accessible for Bioconversion

Simulations and neutron diffraction reveal how amines disrupt cellulose’s structure. Read More »

Baohua Gu and colleagues at Oak Ridge National Laboratory have developed a method to determine the total number of sulfur compounds called thiols on intact bacterial cells and natural organic matter.

New Tool for Studying Toxic Metals in the Environment

Method enables quantification of thiols on bacteria and natural organic matter. Read More »

A new method for measuring planetary boundary layer depth has been applied to data collected over 8 years at the ARM program’s Southern Great Plains site, whose central facility is shown here.

New method to determine planetary boundary layer depth

Combining the strengths of existing techniques, new algorithm could help improve climate models. Read More »

Clouds drift over the coastline outcroppings of Graciosa Island where Atmospheric Radiation Measurement observations were collected for 19 months and used to improve precipitation errors in global climate models.

ARM Data Help Improve Precipitation in Global Climate Models

Cloud, radiation, and drizzle measurements lead to better simulations. Read More »

Phytoplankton known as coccolithophores bloom in the Barents Sea north of Russia, their scales giving off a bright green glow.

Genomic Sequence of a Marine Blooming Alga

Genome variability helps explain why Emiliania huxleyi canflourish in diverse ocean habitats. Read More »

Researchers are studying how bacteria transform mercury into a toxic form in the environment that can accumulate in the food web, posing a threat to wildlife and people.

Multiple Species of Bacteria Convert Elemental Mercury to Toxic Methylmercury

New insights could assist in cleanup of contaminated environments. Read More »

Protein production occurs in two basic steps: transcription and translation.

Recoding of Bacterial Genome Produces Proteins with New Functions

Altered stop codon allows E. coli strain to incorporate nonstandard amino acids. Read More »