Tag Archives: microbial process

The Failing Freezer: How Soil Microbes Affect Global Climate

By Guest PostOctober 10, 2013Environmentabisko national park, arctic circle, big biology problem, carbon dioxide, changsheng li, climate change, climate driven changes, ecologist, Environment, failing freezer, gene tyson, global climate, global scale, jeffrey chanton, matthew sullivan, metagenome, methane, microbial feast, microbial process, organic material, patrick crill, permafrost soil, plexiglas chamber, scott saleska, sentinel ecosystem, soil chemistry, soil microbes, steven frolking, Sweden, types of carbon, university of arizona, virginia, virginia rich

With a $3.9 million grant from the U.S. Department of Energy, a UA-led international collaboration studies how microbes release greenhouse gases as they gain access to nutrients in the soil thawing under the influence of warmer global temperatures.

The U.S. Department of Energy has awarded $3.9 million to an international collaboration led by University of Arizona ecologists Scott Saleska and Virginia Rich to study how microbes release greenhouse gases as they access nutrients in thawing permafrost soils under the influence of a warmer climate. (more…)

Global Rivers Emit Three Times IPCC Estimates of Greenhouse Gas Nitrous Oxide

By Guest PostDecember 21, 20103 commentsEnvironmentagriculture, atmosphere, atmospheric ozone layer, chelsea crenshaw, denitrification, dinitrogen, global, greenhouse gas, henry gholz, human activities, inert gas, ipcc, jake beaulieu, microbes, microbial process, nitrogen, nitrous oxide, oxide emissions, ozone, river networks, stratospheric, waterways

*Waterways receiving nitrogen from human activities are significant source*

What goes in must come out, a truism that now may be applied to global river networks.

Human-caused nitrogen loading to river networks is a potentially important source of nitrous oxide emission to the atmosphere. Nitrous oxide is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. (more…)