Title: Removal of carbon dioxide from the atmosphere to reduce global warming: a modelling study

Authors: J.B. Shukla; Mahesh Singh Chauhan; Shyam Sundar; Ram Naresh

Addresses: BIT, BIIFRD, Bhabha Group of Institutions, Kanpur (Rural)-209204, India ' BIT, BIIFRD, Bhabha Group of Institutions, Kanpur (Rural)-209204, India ' Department of Mathematics, P.S. Institute of Technology, Kanpur-208020, India ' Department of Mathematics, H.B. Technological Institute, Kanpur-208002, India

Abstract: We propose non-linear models to study the feasibility of removing CO₂ from the atmosphere by introducing some external species such as liquid droplets and particulate matters in the atmosphere, which may react with this gas and get it removed by gravity. Further, this gas can also be removed by photosynthesis process upon using plantation of leafy trees around the sources of emission. The proposed nonlinear models are analysed using stability theory of differential equations and computer simulations. Model analysis suggests that the concentration of global warming gas decreases as the rates of introduction of liquid droplets and particulate matters increase. Also, this gas can be removed almost completely from the atmosphere, if the rates of introduction of these external species are very large. The concentration of CO₂ also decreases as its absorption by green belt increases. It decreases further if the rate of introduction of external species increases. The numerical simulation of the models confirms these analytical results.

Keywords: global warming; liquid species; particulate matter; green belt; stability theory; carbon removal; carbon dioxide; CO2; nonlinear modelling; air pollution; air quality; photosynthesis; leafy trees; differential equations; numerical simulation; greenhouse gases; carbon emissions; GHG emissions.

DOI: 10.1504/IJGW.2015.067754

International Journal of Global Warming, 2015 Vol.7 No.2, pp.270 - 292

Received: 20 Dec 2012
Accepted: 12 Jun 2013
Published online: 05 Mar 2015 *

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