title: Marine cloud brightening: regional applications.
abstract: The general principle behind the marine cloud brightening (MCB) climate engineering technique is that seeding marine stratocumulus clouds with substantial concentrations of roughly monodisperse sub-micrometre-sized seawater particles might significantly enhance cloud albedo and longevity, thereby producing a cooling effect. This paper is concerned with preliminary studies of the possible beneficial application of MCB to three regional issues: (1) recovery of polar ice loss, (2) weakening of developing hurricanes and (3) elimination or reduction of coral bleaching. The primary focus is on Item 1. We focus discussion herein on advantages associated with engaging in limited-area seeding, regional effects rather than global; and the levels of seeding that may be required to address changing current and near-term conditions in the Arctic. We also mention the possibility that MCB might be capable of producing a localized cooling to help stabilize the West Antarctic Ice Sheet.
authors.affiliation: National Centre for Atmospheric Research Boulder, CO 80301, USA School of Earth and Atmospheric Sciences, University of Manchester, Manchester M13 9PL, UK john.lathm-2@manchester.ac.uk.
authors.forename: John
authors.initials: J
authors.lastname: Latham
authors.affiliation: NCAS, SEE, University of Leeds, Leeds, LS2 9JT, UK.
authors.forename: Alan
authors.initials: A
authors.lastname: Gadian
authors.affiliation: Planetwork San Francisco, CA 94102, USA.
authors.forename: Jim
authors.initials: J
authors.lastname: Fournier
authors.affiliation: LOCEAN, Universite du Pierre et Marie Curie, Paris 75252, France.
authors.forename: Ben
authors.initials: B
authors.lastname: Parkes
authors.affiliation: Ocean Physics, DAMTP, University of Cambridge, Cambridge CB3 0WB, UK.
authors.forename: Peter
authors.initials: P
authors.lastname: Wadhams
authors.affiliation: National Centre for Atmospheric Research Boulder, CO 80301, USA.
authors.forename: Jack
authors.initials: J
authors.lastname: Chen
keywords: Antarctic; Arctic; polar sea-ice; preservation; recovery