Artificial Cloud Formation in the Atmosphere

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Science  03 Nov 1972:
Vol. 178, Issue 4060, pp. 504-505
DOI: 10.1126/science.178.4060.504


An artificial cloud in the cloudless atmosphere at a temperature below 0°C was formed by introducing pellets of Dry Ice into air containing more water vapor than would be present at the saturation point with respect to ice. Such clouds could be utilized to establish radiative equilibrium between ground and air so as to inhibit the cooling of selective arctic surface regions under clear skies.

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