I’m sorry but this is incorrect. Water vapor changing phases does not cool the earth as the heat is only transferred within the system. Heat is lost via irradiation of infrared radiation to space, which is made more difficult by the added greenhouse gases into the atmosphere which is causing the planet to warm. (https://www.acs.org/content/acs/en/climatescience/climatesciencenarratives/what-is-the-greenhouse-effect.html)
Ice Sheets reach a steady state elevation based on accumulation rate of snow, thinning of the ice caused by sheer stresses (causes the ice to flow), and basal melting due to geothermal heating.
…Mayfly…