Ilsa B. Kantola, Elena Blanc-Betes, Michael D. Masters, Elliot Chang, Alison Marklein, Caitlin E. Moore, Adam von Haden, Carl J. Bernacchi, Adam Wolf, Dimitar Z. Epihov, David J. Beerling, Evan H. DeLucia
Terrestrial enhanced weathering (EW) through the application of Mg- or Ca- rich rock dust to soil is a negative emission technology with the potential to address impacts of climate change. The effectiveness of EW was tested over 4 years by spreading ground basalt (50 t ha−1 year−1) on maize/soybean and miscanthus cropping systems in the Midwest US. The major elements of the carbon budget were quantified through ...
David J. Beerling, Dimitar Z. Epihov, Ilsa B. Kantola, Michael D. Masters, Tom Reershemius, Noah J. Planavsky, Christopher T. Reinhard, Jacob S. Jordan, Sarah J. Thorne1, James Weber, Maria Val Martin, Robert P. Freckleton, Sue E. Hartley, Rachael H. James, Christopher R. Pearce, Evan H. DeLucia, Steven A. Banwart
Enhanced weathering (EW) with crushed basalt on farmlands is a promising
scalable atmospheric carbon dioxide removal strategy that urgently requires
performance assessment with commercial farming practices. Our large-scale
replicated EW field trial in the heart of the U.S. Corn Belt shows cumulative time integrated carbon ...
Tom Reershemius, Mike E. Kelland, Isabelle R. Davis, Rocco D’Ascanio, Boriana Kalderon Asael, Dan Asael, Dimitar E. Epihov , David J. Beerling, Christopher T. Reinhard , Noah J. Planavsky
Enhanced rock weathering (ERW) has been touted as a scalable and cost-effective
potential carbon dioxide removal (CDR) strategy with significant environmental and agronomic co-benefits. However, a major barrier to implementation of ERW at scale is a robust monitoring, reporting, and verification (MRV) framework that can accurately, precisely, and cost-effectively measure the amount of carbon dioxide being removed by ERW in the field. Here we outline ...
David P. Edwards, Felix Lim, Rachael H. James, Christopher R. Pearce, Julie Scholes, Robert P. Freckleton and David J. Beerling
Restricting future global temperature increase to 2°C or less requires the adoption of negative emissions technologies for carbon capture and storage. We review the potential for deployment of enhanced weathering (EW), via the application of crushed reactive silicate rocks (such as basalt), on over 680 million hectares of tropical agricultural and tree plantations to offset fossil fuel CO2 emissions. Warm tropical climates and productive crops will substantially enhance weathering rates, with potential ...
Lyla L. Taylor, Charles T. Driscoll, Peter M. Groffman, Greg H. Rau, Joel D. Blum, David J. Beerling
Meeting internationally agreed-upon climate targets requires carbon dioxide removal (CDR) strategies coupled with an urgent phase-down of fossil fuel emissions. However, the efficacy and wider impacts of CDR are poorly understood. Enhanced rock weathering (ERW) is a land-based CDR strategy requiring large-scale field trials. Here we show that a low 3.44 t ha−1 wollastonite treatment in an 11.8 ha acid-rain-impacted forested watershed in New Hampshire, USA, led to cumulative carbon capture by carbonic acid weathering of 0.025–0.13 t ...
Andrews, G., Epihov, D., Pearce, C. R., James, R. H., Beerling, D. J.
Enhanced Weathering (EW) of silicate rocks is a carbon dioxide (CO 2 ) removal (CDR) strategy whereby powdered rock is applied to the land and/or ocean in order to mitigate climate warming through accelerated rates of chemical weathering. Agricultural sites are particularly suited for EW as they host infastructure needed to implement EW, and the nutrients released during weathering facilitate a number of food security co-benefits such as increased crop yields .
Here we present results from EW field trials conducted in Norfolk, United Kingdom, with two different ...
Rafael M. Eufrasio, Euripides P. Kantzas, Neil R. Edwards, Philip B. Holden, Hector Pollitt, Jean-Francois Mercure, S. C. Lenny Koh, David J. Beerling
Enhanced Rock Weathering is a proposed Carbon Dioxide Removal technology involving the application of crushed silicate rocks, such as basalt, to agricultural soils with potential cobenefits for crops and soils, and mitigation of ocean acidification. Here we address the requirement of diverse stakeholders for informative studies quantifying possible environmental and health risks of Enhanced Rock Weathering. Using life-cycle assessment modelling of potential supply chain impacts for ...
Lyla L. Taylor, David J. Beerling, Shaun Quegan, Steven A. Banwart
Enhanced weathering (EW) aims to amplify a natural sink for CO2by incorporating powdered silicate rock with high reactive surface area into agricultural soils. The goal is to achieve rapid dissolution of minerals and release of alkalinity with accompanying dissolution of CO2into soils and drainage waters. EW could counteract phosphorus limitation and greenhouse gas(GHG) emissions in tropical soils, and soil acidification, a common agricultural problem studied with numerical process models over several decades. Here, we review the processes leading to soil acidifica...
Ilsa B. Kantola, Michael D. Masters, David J. Beerling, Stephen P. Long and Evan H. DeLucia
Conventional row crop agriculture for both food and fuel is a source of carbon dioxide (CO2) and nitrous oxide (N2O) to the atmosphere, and intensifying production on agricultural land increases the potential for soil C loss and soil acidification due to fertilizer use. Enhanced weathering (EW) in agricultural soils—applying crushed silicate rock as a soil amendment—is a method for combating global climate change while increasing nutrient availability to plants. EW uses land that is already producing food and fuel to sequester carbon (C), and ...