Quote Originally Posted by Juggernaut1981 View Post
Water takes lots of energy to heat (in chemistry terms) so more water = more energy to maintain temperature = planet cools.
Enough water (e.g. comets landing to cause 800m sea level rise) would eventually accumulate into an ice age
I dunno about that. Sure, keep dumping ice on a planet, it'll cool ... but solar energy plus core-produced radioactive heat, I would think, would soon bring back equilibrium.

Plus, the energy of the ice meteors themselves, as they brake into the planet, would ADD to the total energy of the system.

This is not an effect I would worry about unless I thought it was a fun thing to include.