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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.July 2014Science Highlights

Multiple Species of Bacteria Convert Elemental Mercury to Toxic Methylmercury

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

An assessment of the ability of climate models to simulate clouds shows that newer models are better aligning with cloud satellite observations.July 2014Science Highlights

Improved Climate Model Simulations of Clouds

New models show reduction in bias associated with too many highly reflective clouds. Read More »

Researchers are genetically engineering microorganisms to produce high-energy biofuels that can directly replace petroleum in existing engines.July 2014Science Highlights

Higher Yields of Advanced Biofuels from Genetically Engineered Yeast

Strains produce “drop-in” fuels and chemicals derived from fatty acids. Read More »

Researchers have used a global climate model to assess future water demands in the agricultural, energy, industrial, and municipal sectors, concluding that freshwater availability may be insufficient in some regions.July 2014Science Highlights

Long-Term Water Projections and Climate Change

Model scenarios predict increased scarcity in the Middle East and India. Read More »

Researchers are seeking to better predict the impact of ice sheet melting in Greenland under a changing climate.July 2014Science Highlights

Greenland Ice Sheet “Sliding” a Small Contributor to Future Sea-Level Rise

Modeling experiments assess impacts of key melting behavior. Read More »

Methane emissions estimated in a recent study (A) and compared against the commonly used Emissions Database for Global Atmospheric Research (EDGAR) 4.2 inventory (B and C).July 2014Science Highlights

Some U.S. Methane Sources May Be Larger than Previously Thought

Inventories underestimate emissions from fossil fuel industry and animal husbandry, study finds. Read More »

Aerosol observations from the 2011 Las Conchas fire in New Mexico (seen here) are helping researchers gain a better understanding of wildfire effects on climate.July 2014Science Highlights

Wildfires Lead to More Warming than Climate Models Predicted

Aerosol observations shed light on impact of soot and smoke. Read More »

Color map (left) reconstructed image showing the direction of magnetization and the stray magnetic fields in and around a cobalt nanospiral (color wheel indicates magnetization direction) that is only 20 nm in diameter (images taken using high resolution Lorentz microscopy), and (right) tomographic reconstruction showing the 3D shape of the nano-spiral.June 2014Science Highlights

Magnetic Structure of Sculpted Nanospirals

Direct visualization of magnetic structures gives researchers a window into new possibilities at the Nanoscale. Read More »

Control of the synthesis results in a diversity of self-assembled structures formed by sticky colloidal particles:  array of “mushrooms” (left), wavy colloidal “fur”, dense fiber network, and three-dimensional reconstruction of the network (right).June 2014Science Highlights

Growing Nano “Hair” for Electrodes - From the Bottom Up

Electric fields control growth of “sticky” polymer particles. Read More »

Left: Fluorescent image of two polystyrene particles positioned at the north and south poles of a liquid crystal droplet. Right: Simulation of particle adsorption; region of disorder within droplets coincides exactly with the particle positions at the poles.June 2014Science Highlights

Cell-like Decoration of “Gooey” Surface

Precise, predictable positioning of nanoparticles on a liquid crystal droplet. Read More »