As a hypothetical, say it became easy to grab water from objects in space and then move it places that needed (Africa / the gulf). What would the end results be for the global climate over time? Would you just end up with a flooded earth? Would temperatures rise or fall as time goes on?
Watch the movie Waterworld (1995).
Ah, so it would result in more Kevin Costner.
I think you meant to say “documentary”