Methane is an extremely potent greenhouse gas. Wetlands, gas hydrates, permafrost, termites, oceans, freshwater bodies, non-wetland soils, are all natural sources of atmospheric methane; however, the majority of methane presence ca n be accredited to human-related activities.
These activities include: such as fossil fuel production, biomass burning, waste management and animal husbandry. The release of methane into the atmosphere by cattle and other large grazing mammals is estimated to account for 12 to 17% of the total global methane release.
Recently, scientists developed a methane release measuring technique as way of tracking the discharge of the gas without disrupting the regular management of the herd. This is part of a collaborative research study conducted by researchers from Agriculture and Agri-Food Canada's Lethbridge Research Centre, the Commonwealth Scientific and Industrial Research Organization, and the University of Melbourne in Australia.
Cattle were fitted with global positioning devices to track their movements and wind speed and direction were constantly measured. Unlike previous studies in which a few cattle were handled daily and methane measurements were taken directly, this technique centered on using open-path lasers to obtain a short-term measurement of methane release from an entire grazing herd. For instance in one study, the technique was used to take repeated measurements of methane concentration every 10 minutes directly above the height of the 18 cattle in the paddock. According to the results, the technique developed so well it can account for 77% of methane release at a single point in a paddock.
Sean McGinn, the author of the study describes the technique as a "significant advancement in assessing greenhouse gas emissions from the cattle industry."
Collaborative research is continuing to further measure methane release from other agricultural sources. The full study is published in the January/February 2011 issue of the Journal of Environmental Quality.
Sara Uttech | EurekAlert
Trees and climate change: Faster growth, lighter wood
14.08.2018 | Technische Universität München
Animals and fungi enhance the performance of forests
01.08.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences