Prabhupāda: Scientists cannot purify the sea water and use it profusely. Why they are depending on rain? Let them purify it and take so much water.
Devotee (2): It's a very costly process, Śrīla Prabhupāda.
Prabhupāda: (laughs) Therefore I am asking.
Madhudviṣa: Kṛṣṇa is doing it. He is taking the water from the sea and putting it up in the sky, and it becomes very pure.
Prabhupāda: Millions and millions of tons water taken and distributed. Why their scientists so proud of their achievement? What they can do?
Madhudviṣa: Hmm. It is amazing. There is no factory in the sky to purify the water. Simply by the evaporation of the sun, the water is held up in the sky, and immediately it comes down pure.
Prabhupāda: And it is stored on the mountain head and it comes down. Eternal supply. Whole year's supply through the rivers, huge water. You have seen that, what is name, Niagara Falls?
Madhudviṣa: Yes. You have seen? (laughter)
Prabhupāda: Yes. Huge water. There are many falls like that. Clean, clear, nice, sweet water is coming. There is sweet-water sea also.