Engineering artificial thermal mountains for large-scale water management and carbon drawdown

Knox, G.W., McInnes, C.R. , Younger, P.L. and Sloan, W.T. (2019) Engineering artificial thermal mountains for large-scale water management and carbon drawdown. Environmental Science: Water Research and Technology, 5(2), pp. 296-314. (doi: 10.1039/c8ew00571k)

Abstract

To meet future climate change targets, it may become necessary to remove carbon dioxide from the atmosphere at an unprecedented rate and scale. This paper investigates a new potential strategy: the application of the thermal mountain effect to artificially increase rainfall in desert regions and transform such regions into a vegetated state, thus sequestering significant quantities of carbon. A preliminary systems engineering analysis evaluating the design parameters of an artificial thermal mountain is provided, along with the analysis of its potential for carbon capture and agricultural applications. It is estimated that a large-scale low-albedo coating, between 15 000 and 50 000 km2 in surface area, would, in principle, be sufficient to provide enough rainfall to irrigate a 1000 km × 2000 km section of the Sahara desert. While the scale of engineering is potentially vast, it is arguably smaller than other schemes such as enhanced rock weathering.

• Item Type: Articles
• Keywords: Environmental engineering, water science and technology.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sloan, Professor William and Younger, Professor Paul and Knox, George and McInnes, Professor Colin
• Authors: Knox, G.W., McInnes, C.R., Younger, P.L., and Sloan, W.T.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment; College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Environmental Science: Water Research and Technology
• Publisher: Royal Society of Chemistry
• ISSN: 2053-1400
• ISSN (Online): 2053-1419
• Published Online: 14 December 2018
• Copyright Holders: Copyright © 2019 The Royal Society of Chemistry
• First Published: First published in Environmental Science: Water Research and Technology 5(2): 296-314
• Publisher Policy: Reproduced in accordance with the publisher copyright policy