Peat and Whiskey

Peat and Whiskey

Despite covering only 3% of the Earth’s surface, boreal and subarctic peatlands contain between 270 – 320 Tg of carbon, or about 34-46% of the carbon currently present in atmosphere – dominantly as CO2 (IPCC, 2007). Many of these peatlands began their lives after the last glacial maximum, following the retreat of glaciers from the […]

Total Greenhouse Gas Exchange from a Beef Cattle Farm Using Direct Whole Farm Measurements

Total Greenhouse Gas Exchange from a Beef Cattle Farm Using Direct Whole Farm Measurements

Many anthropogenic activities are significant sources of greenhouse gasses, however not all emissions are as easy to quantify as the direct burning of fossil fuels (e.g. for transportation or electricity). Other significant sources of greenhouse gasses including agriculture can be harder to quantify due to the increased number of variables involved. In Canada, this sector […]

The comparison of two chamber designs for measurements of methane fluxes from a Wetland Research Park

The comparison of two chamber designs for measurements of methane fluxes from a Wetland Research Park

Naturally occurring, biologically productive wetlands are significant greenhouse gas contributors, producing roughly 25% of the world’s methane stock. This is a concern to scientists on a global scale, as methane has a Global Warming Potential (GWP) 25x greater than that of CO2. It is imperative to gas flux science to understand the contribution that wetlands […]

Comparing Results of High and Low Frequency Measurements of Greenhouse Gas Fluxes

Comparing Results of High and Low Frequency Measurements of Greenhouse Gas Fluxes

The emission of greenhouse gasses from soils is caused by dynamic factors such as temperature and moisture. These two factors are also influenced by a multitude of external factors such as diel cycles, land management, wetting/drying events and seasonality; which all lead to a high level of variability in greenhouse gasses emitted (Savage et al., […]

Testing Novel CO2 Soil Flux Measuring Equipment and its Use in Monitoring Permafrost Activity

Testing Novel CO2 Soil Flux Measuring Equipment and its Use in Monitoring Permafrost Activity

The International Symposium on The Cryosphere in a Changing Climate was hosted by Victoria University of Wellington from February 12 to 17, 2017, in Wellington, New Zealand. Ronald Layden from the Aurora Research Institute at Aurora College in Yellowknife, NT attended and presented his poster on “Testing Novel CO2 Soil Flux Measuring Equipment and its Use in Monitoring Permafrost Activity.” […]

Closed Chamber Systems for Continued Research of Greenhouse Gas Fluxes from Permafrost Zones

Closed Chamber Systems for Continued Research of Greenhouse Gas Fluxes from Permafrost Zones

Understanding greenhouse gas emissions from stored organic carbon is an increasingly important area in gas flux science. Melt of permafrost layers, caused by rising global temperatures, threatens to contribute more to atmospheric CO2 concentrations than previously thought. These large permafrost melt driven emissions of greenhouse gases also have the potential to cause accelerated global warming […]

An Analysis of: Spatio-Temporal Patterns of Stream Methane and Carbon Dioxide Emissions in a Hemiboreal Catchment in Southwest Sweden

An Analysis of: Spatio-Temporal Patterns of Stream Methane and Carbon Dioxide Emissions in a Hemiboreal Catchment in Southwest Sweden

Even though they don’t cover a large area of the world, streams are an important contributor to total aquatic CO2 emissions; the estimated emissions from streams and rivers around the world exceed those of lakes and reservoirs.  The large emissions from streams is partially due to high concentrations of CO2 in streams as compared to […]