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Atmospheric dust from deserts or human activities influences the processes within cirrus clouds, thereby affecting global climate.July 2014Science Highlights

Dust in High Clouds Cools Climate

Study examines impact of ice particle competition. Read More »

Global distribution of black carbon in 2000 among eight different models, whose results diverged the most in polar regions.July 2014Science Highlights

Understanding Soot’s Effect on Snow Reflectivity

Model comparison evaluates black carbon levels and impacts. Read More »

Scientists can noninvasively examine how live microbial communities interact in real time using the nanospray desorption electrospray ionization mass spectrometry (nanoDESI) instrument.July 2014Science Highlights

Learning How Bacteria Communicate

New tool identifies molecules that influence microbial communities. Read More »

A new modeling approach suggests that boreal forests, such as this one in Quebec, Canada, will shift north with warming and lose more carbon than previously expected.July 2014Science Highlights

Getting Forest Carbon Right in Climate Models

New method predicts how climates will move as temperatures rise. Read More »

Aerial view of braided wetlands and tundra typical of the Bristol Bay watershed in Alaska.July 2014Science Highlights

Modeling Global Wetlands and Their Methane Emissions

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

A large portion of the plant cell wall contains cellulose, which consists of sugar molecules organized into cable-like structures called microfibrils.July 2014Science Highlights

Making Cellulose More Accessible for Bioconversion

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

Phytoplankton known as coccolithophores bloom in the Barents Sea north of Russia, their scales giving off a bright green glow.July 2014Science Highlights

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.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 »