As water evaporates from the oceans, what happens to the total amount of water on Earth?
No water from the Earth goes out, beyond the cloud-bearing troposphere of the atmosphere. It is all circulation,
Sea accounts for more than two thirds of the surface of the Earth.
The water on the Earth is mostly ocean water.
Only surface water from the oceans evaporate. The conditions
favoring evaporation might be triggered from within or radiation,
from the Sun.
Before precipitation, atmospheric water is in the form of fog and
Roughly, on the average, at any time, nearly one half of this total
is up there.
In the other half, a little more than half of this precipitates over the
land; a little less than this fall over oceans.
Conservation : No water from the Earth goes out, beyond the
cloud-bearing troposphere of the atmosphere. Overall, it is all
This my analysis, from what I could recall from my memory. For
facts and figures, the references are aplenty.