To increase the global temperature of the Earth by 1.7°C, 'by injecting a cloud of ice crystals into the polar atmosphere by detonating 10 H-bombs in the Arctic Ocean – the subject of his 1958 article in Science magazine' (Wexler H., 1958, 'Modifying Weather on a Large Scale,' Science, n.s. 128 (Oct. 31, 1958): 1059-1063). To diminish the global temperature by 1.2°C could be doable, 'by launching a ring of dust particles into equatorial orbit, a modification of an earlier Russian proposal to warm the Arctic'. To destroy the ozone layer and hence increase abruptly the surface temperature of the Earth, by spraying 'several hundred thousand tons of chlorine or bromine' with a stratospheric airplane. Fleming, 2007(a), pp. 56-57; Fleming, 2007(b), 'note n° viii' p. 9 & p. 5 (source)" https://chemtrailsplanet.net/2013/0...itary-climate-modification-technology-2/
