Regarding greenhouse explosion

Abstract

Can our planet Earth become as hot as Venus as a result of runaway accumulation of carbon dioxide in the atmosphere and explosive increasing of the greenhouse effect? This question is reasonable because the Earth’s reservoirs, such as the oceans, biota, and carbonates in the Earth’s crust, contain approximately the same total amount of CO2 as the atmosphere of Venus (Nicholls, 1967). On the other hand, simulations of the radiation regime of the atmosphere of Venus (Kondratyev and Moskalenko, 1985) confirm that the temperature of the lower atmosphere of the planet may be very hot even if the incoming solar flux inside its atmosphere is weaker than the incoming solar flux inside the Earth’s atmosphere. For example, according to observations, the surface temperature of Venus is about 730K (Kondratyev, 1990), in comparison with the annual mean surface temperature of the Earth which is about 288.2K. However, the flux of solar radiation at the top of the atmosphere of Venus is mainly reflected by clouds (due to the high value of the albed of the clouds, about 0.75); thus, the flux of solar radiation incoming to the atmosphere of Venus and heating the surface is about 165 Wm−2 (Kondratyev, 1990; Gorshkov 1995) by comparison with the incoming flux of solar radiation to the atmosphere of the Earth of about 240Wm−2 (Bach. 1987). The reason for the large difference between their surface temperatures is the very strong greenhouse effect on Venus due to the high content of greenhouse gases, mainly carbon dioxide (pressure about 90 atmospheres). in the atmosphere of Venus.