scholarly journals THE APPLICATION AND DEVELOPMENT OF APPROPRIATE TOOLS AND TECHNOLOGIES FOR COST-EFFECTIVE CARBON SEQUESTRATION

2002 ◽  
Author(s):  
Bill Stanley ◽  
Sandra Brown ◽  
Ellen Hawes ◽  
Zoe Kant ◽  
Miguel Calmon ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Cost Effective

scholarly journals Brazilian Mangroves: Blue Carbon Hotspots of National and Global Relevance to Natural Climate Solutions

2022 ◽  
Vol 4 ◽  
Author(s):  
Andre S. Rovai ◽  
Robert R. Twilley ◽  
Thomas A. Worthington ◽  
Pablo Riul
Keyword(s):  
Carbon Sequestration ◽  
National Level ◽  
Cost Effective ◽  
Woody Biomass ◽  
Carbon Stocks ◽  
Blue Carbon ◽  
Carbon Accumulation ◽  
Amazon Forest ◽  
Nationally Determined Contributions ◽  
Natural Climate

Mangroves are known for large carbon stocks and high sequestration rates in biomass and soils, making these intertidal wetlands a cost-effective strategy for some nations to compensate for a portion of their carbon dioxide (CO2) emissions. However, few countries have the national-level inventories required to support the inclusion of mangroves into national carbon credit markets. This is the case for Brazil, home of the second largest mangrove area in the world but lacking an integrated mangrove carbon inventory that captures the diversity of coastline types and climatic zones in which mangroves are present. Here we reviewed published datasets to derive the first integrated assessment of carbon stocks, carbon sequestration rates and potential CO2eq emissions across Brazilian mangroves. We found that Brazilian mangroves hold 8.5% of the global mangrove carbon stocks (biomass and soils combined). When compared to other Brazilian vegetated biomes, mangroves store up to 4.3 times more carbon in the top meter of soil and are second in biomass carbon stocks only to the Amazon forest. Moreover, organic carbon sequestration rates in Brazilian mangroves soils are 15–30% higher than recent global estimates; and integrated over the country’s area, they account for 13.5% of the carbon buried in world’s mangroves annually. Carbon sequestration in Brazilian mangroves woody biomass is 10% of carbon accumulation in mangrove woody biomass globally. Our study identifies Brazilian mangroves as a major global blue carbon hotspot and suggest that their loss could potentially release substantial amounts of CO2. This research provides a robust baseline for the consideration of mangroves into strategies to meet Brazil’s intended Nationally Determined Contributions.

scholarly journals Technical Progress Report on Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration

2005 ◽  
Author(s):  
Bill Stanley ◽  
Patrick Gonzalez ◽  
Sandra Brown ◽  
Sarah Woodhouse Murdock ◽  
Jenny Henman ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Technical Progress ◽  
Cost Effective ◽  
Progress Report

scholarly journals Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration

2006 ◽  
Author(s):  
Bill Stanley ◽  
Patrick Gonzalez ◽  
Sandra Brown ◽  
Jenny Henman ◽  
Sarah Woodhouse Murdock ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Cost Effective

scholarly journals Detection of urease and carbonic anhydrase activity using a rapid and economical field test to assess microbially-induced carbonate precipitation

2020 ◽  
Author(s):  
Fernando Medina Ferrer ◽  
Kathryn Hobart ◽  
Jake V. Bailey
Keyword(s):  
Carbon Sequestration ◽  
Carbonic Anhydrase ◽  
Marker Gene ◽  
Cost Effective ◽  
Carbonic Anhydrase Activity ◽  
Soil Restoration ◽  
Reaction Products ◽  
Calcareous Fens ◽  
Molecular Approaches

ABSTRACTMicrobial precipitation of calcium carbonate has diverse engineering applications, from building and soil restoration, to carbon sequestration. Urease-mediated ureolysis and CO2 (de)hydration by carbonic anhydrase (CA) are known for their potential to precipitate carbonate minerals, yet many microbial community studies rely on marker gene or metagenomic approaches that are unable to determine in situ activity. Here, we developed fast and cost-effective tests for the field detection of urease and CA activity using pH-sensitive strips inside microcentrifuge tubes that change color in response to the reaction products of urease (NH3) and CA (CO2). Samples from a saline lake, a series of calcareous fens, and ferrous springs were assayed in the field, finding relatively high urease activity in lake samples, whereas CA activity was only detected in a ferrous spring. Incubations of lake microbes with urea resulted in significantly higher CaCO3 precipitation compared to incubations with a urease inhibitor. Therefore, the rapid assay indicated an on-site active metabolism potentially mediating carbonate mineralization. Field urease and CA activity assays complement molecular approaches and facilitate the search for carbonate-precipitating microbes and their in situ activity, which could be applied toward agriculture, engineering and carbon sequestration technologies.

scholarly journals Carbon sequestration

2007 ◽  
Vol 363 (1492) ◽  
pp. 815-830 ◽  
Author(s):  
Rattan Lal
Keyword(s):  
Carbon Sequestration ◽  
Energy Use ◽  
Deep Ocean ◽  
Cost Effective ◽  
C Sequestration ◽  
First Century ◽  
Ancillary Benefits ◽  
Atmospheric Concentration ◽  
Rate Of Increase ◽  
Climate Change Risks

Developing technologies to reduce the rate of increase of atmospheric concentration of carbon dioxide (CO 2 ) from annual emissions of 8.6 Pg C yr –1 from energy, process industry, land-use conversion and soil cultivation is an important issue of the twenty-first century. Of the three options of reducing the global energy use, developing low or no-carbon fuel and sequestering emissions, this manuscript describes processes for carbon (CO 2 ) sequestration and discusses abiotic and biotic technologies. Carbon sequestration implies transfer of atmospheric CO 2 into other long-lived global pools including oceanic, pedologic, biotic and geological strata to reduce the net rate of increase in atmospheric CO 2 . Engineering techniques of CO 2 injection in deep ocean, geological strata, old coal mines and oil wells, and saline aquifers along with mineral carbonation of CO 2 constitute abiotic techniques. These techniques have a large potential of thousands of Pg, are expensive, have leakage risks and may be available for routine use by 2025 and beyond. In comparison, biotic techniques are natural and cost-effective processes, have numerous ancillary benefits, are immediately applicable but have finite sink capacity. Biotic and abiotic C sequestration options have specific nitches, are complementary, and have potential to mitigate the climate change risks.

scholarly journals Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration

2006 ◽  
Author(s):  
Bill Stanley ◽  
Sandra Brown ◽  
Patrick Gonzalez ◽  
Brent Sohngen ◽  
Neil Sampson ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Cost Effective

Optimization of Geophone Array for Monitoring Geologic Carbon Sequestration Using Double-Difference Tomography

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Ben Fahrman ◽  
Erik Westman ◽  
Mario Karfakis ◽  
Kray Luxbacher
Keyword(s):  
Carbon Sequestration ◽  
Injection Site ◽  
Seismic Event ◽  
Synthetic Data ◽  
Cost Effective ◽  
Velocity Model ◽  
Double Difference ◽  
Data Sets ◽  
Geologic Carbon Sequestration ◽  
Tomographic Inversion

Synthetic data were analyzed to determine the most cost-effective tomographic monitoring system for a geologic carbon sequestration injection site. Double-difference tomographic inversion was performed on 125 synthetic data sets: five stages of CO2 plume growth, five seismic event regions, and five geophone arrays. Each resulting velocity model was compared quantitatively to its respective synthetic velocity model to determine accuracy. The results were examined to determine a relationship between cost and accuracy in monitoring, verification, and accounting applications using double-difference-tomography. The geophone arrays with widely varying geophone locations, both laterally and vertically, performed best.

scholarly journals Opportunities and constraints for biochar technology in Australian agriculture: looking beyond carbon sequestration

Soil Research ◽  
2014 ◽  
Vol 52 (8) ◽  
pp. 739 ◽  
Author(s):  
Balwant Singh ◽  
Lynne M. Macdonald ◽  
Rai S. Kookana ◽  
Lukas van Zwieten ◽  
Greg Butler ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Cost Effective ◽  
Crop Productivity ◽  
Full Potential ◽  
Research Areas ◽  
Application Rates ◽  
Terra Preta ◽  
Value Add ◽  
Novel Applications ◽  
Productivity Gains

The application of biochar technology for soil amendment is largely based on evidence about soil fertility and crop productivity gains made in the Amazonian Black Earth (terra preta). However, the uncertainty of production gains at realistic application rates of biochars and lack of knowledge about other benefits and other concerns may have resulted in poor uptake of biochar technology in Australia so far. In this review, we identify important opportunities as well as challenges in the adoption of biochar technology for broadacre farming and other sectors in Australia. The paper highlights that for biochar technology to be cost-effective and successful, we need to look beyond carbon sequestration and explore other opportunities to value-add to biochar. Therefore, some emerging and novel applications of biochar are identified. We also suggest some priority research areas that need immediate attention in order to realise the full potential of biochar technology in agriculture and other sectors in Australia.

scholarly journals Microalgae Water Bioremediation: Trends and Hot Topics

2020 ◽  
Vol 10 (5) ◽  
pp. 1886 ◽  
Author(s):  
Diana Pacheco ◽  
Ana Cristina Rocha ◽  
Leonel Pereira ◽  
Tiago Verdelhos
Keyword(s):  
Public Health ◽  
Wastewater Treatment ◽  
Carbon Sequestration ◽  
Circular Economy ◽  
Cost Effective ◽  
Research Field ◽  
Emerging Pollutants ◽  
Analysis Software ◽  
Treatment Processes ◽  
Microalgae Biomass

The need to reduce costs associated with the production of microalgae biomass has encouraged the coupling of process with wastewater treatment. Emerging pollutants in municipal, industrial, and agricultural wastewaters, ranging from pharmaceuticals to metals, endanger public health and natural resources. The use of microalgae has, in fact, been shown to be an efficient method in water-treatment processes and presents several advantages, such as carbon sequestration, and an opportunity to develop innovative bioproducts with applications to several industries. Using a bibliometric analysis software, SciMAT, a mapping of the research field was performed, analyzing the articles produced between 1981 and 2018, aiming to identifying the hot topics and trends studied until now. The application of microalgae on water bioremediation is an evolving research field that currently focuses on developing efficient and cost-effective treatments methods that also enable the production of add-value products, leading to a blue and circular economy.

scholarly journals An economic analysis of afforestation as a carbon sequestration strategy in southwestern Ontario, Canada

SURG Journal ◽  
2013 ◽  
Vol 6 (2) ◽  
pp. 55-65
Author(s):  
Nigel Gale ◽  
Janelle Trant ◽  
Thomas Schiks ◽  
Jake L'Ecuyer ◽  
Christopher Jackson ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Tree Species ◽  
Atmospheric Carbon Dioxide ◽  
Net Present Value ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Cost Effective ◽  
C Sequestration ◽  
Present Value ◽  
Optimal Price

Afforestation, the establishment of trees in areas that have not been forested for at least 50 years, is one possible approach for carbon (C) sequestration to mitigate climate change. This study compares the costs and benefits of afforestation as a carbon sequestration strategy for Eden Mills, a village within Wellington County, Ontario, Canada aiming to achieve C neutrality. We provide net present value analyses for three potential planting schemes under subsidized and unsubsidized financial scenarios that aim to sequester 2012 tonnes of atmospheric carbon dioxide (CO2) using traditional and novel calculations of C sequestration rates. We present the total project costs, the optimal price of C, and the potential for afforestation as a C sequestration tool in southern Ontario. Planting schemes employ mixtures of tree species common to the region. Unsubsidized schemes are projected to cost between $617,976-$1,499,904 (CAD) with the optimal price of CO2 between $6.15-$14.91 per tonne of C sequestered. A deciduous-dominated planting scheme requiring 24 hectares of land resulted in the lowest cost for all scenarios. Our analyses suggest that: 1) fast-growing tree species make afforestation projects more cost-effective, reducing costs by 29-59%; and 2) land management subsidies available to the region reduce costs by approximately 10%. Future cost-benefit analyses for afforestation projects should consider site-specific C sequestration rates and parameter sensitivity analysis when quantifying C absorption. Keywords: greenhouse gases; carbon sequestration; afforestation; cost-benefit analysis; net present value

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