Venus succumbed early to a «runaway water vapor greenhouse,» in which the increased
water vapor content arising from increased temperature reached an end state with much of the ocean evaporated into the atmosphere.
States that other feedbacks likely to emerge are those in which key processes include surface fluxes of trace gases, changes in the distribution of vegetation, changes in surface soil moisture, changes in atmospheric
water vapor arising from higher temperatures and greater areas of open ocean, impacts of Arctic freshwater fluxes on the meridional overturning circulation of the ocean, and changes in Arctic clouds resulting from changes in
water vapor content