In:
PLOS Climate, Public Library of Science (PLoS), Vol. 2, No. 2 ( 2023-2-8), p. e0000133-
Abstract:
We revisit dust placed near the Earth–Sun L 1 Lagrange point as a possible climate-change mitigation measure. Our calculations include variations in grain properties and orbit solutions with lunar and planetary perturbations. To achieve sunlight attenuation of 1.8%, equivalent to about 6 days per year of an obscured Sun, the mass of dust in the scenarios we consider must exceed 10 10 kg. The more promising approaches include using high-porosity, fluffy grains to increase the extinction efficiency per unit mass, and launching this material in directed jets from a platform orbiting at L 1 . A simpler approach is to ballistically eject dust grains from the Moon’s surface on a free trajectory toward L 1 , providing sun shade for several days or more. Advantages compared to an Earth launch include a ready reservoir of dust on the lunar surface and less kinetic energy required to achieve a sun-shielding orbit.
Type of Medium:
Online Resource
ISSN:
2767-3200
DOI:
10.1371/journal.pclm.0000133
DOI:
10.1371/journal.pclm.0000133.g001
DOI:
10.1371/journal.pclm.0000133.g002
DOI:
10.1371/journal.pclm.0000133.g003
DOI:
10.1371/journal.pclm.0000133.g004
DOI:
10.1371/journal.pclm.0000133.g005
DOI:
10.1371/journal.pclm.0000133.g006
DOI:
10.1371/journal.pclm.0000133.g007
DOI:
10.1371/journal.pclm.0000133.g008
DOI:
10.1371/journal.pclm.0000133.t001
DOI:
10.1371/journal.pclm.0000133.t002
DOI:
10.1371/journal.pclm.0000133.s001
DOI:
10.1371/journal.pclm.0000133.s002
DOI:
10.1371/journal.pclm.0000133.s003
DOI:
10.1371/journal.pclm.0000133.s004
DOI:
10.1371/journal.pclm.0000133.r001
DOI:
10.1371/journal.pclm.0000133.r002
DOI:
10.1371/journal.pclm.0000133.r003
DOI:
10.1371/journal.pclm.0000133.r004
DOI:
10.1371/journal.pclm.0000133.r005
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
3109435-1
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