Is Newater really independent of rainwater?

The Environment and Water Resources Minister, Yaccob Ibrahim, in trying to assuage the public the effect of global warming in Singapore, was quoted as saying, and I quote:

Newwater is from your and me. It is independent of rainfall.

Is that a fact? I shall spare you the agony of having to read how Newater is being derived. Shudder. But if we go by the law of physic; what goes up, must surely come down. By the same logic, if there's no input; then where the output? Am I missing something here?

Category: Musings