It is common to hear things like it takes one gallon of water to create a single almond, or watering a lawn can take X gallons per month/year, or it takes X gallons to make one pound of beef or yield X pounds of alfalfa.
My question is, is that water “gone forever”? Or does the water thats used return to the water table/cycle in some other form. When you water the lawn does a large amount of that seep into the ground, evaporate, and return to the atmosphere?
Or is the water used in these ways truly gone forever (in terms of humans being able to use it again)?
If everyone on earth died at once and decomposed, how much water would be returned to the environment?
Very little, tiny fractions of a tiny fraction of a percent of the water on the planet.
Maybe a few years, once the ISS crashes down to earth as that is one of our greatest of planet reserves