It is already there, havoc. In India there is famine, because they are more, mostly agriculturists. So there is famine. In other countries they have got industries. But India is not so industrially advanced. So without water, nothing can be produced.
Therefore during Mahārāja Yudhiṣṭhira's time, kāmaṁ vavarṣa parjanyaḥ (SB 1.10.4). Yajñād bhavati parjanyaḥ (BG 3.14). If you want sufficient water, then you must perform yajña. These are the indications, direction of the Vedic wisdom. So at the present moment no other yajña is possible. The only yajña, saṅkīrtana-yajña, is possible. Yajñaiḥ saṅkīrtana-prāyair yajanti hi su-medhasaḥ (SB 11.5.32). So if this Kṛṣṇa consciousness movement is taken seriously all over the world and they perform saṅkīrtana-yajña, everything will be adjusted immediately. Everything. But these rascals will not take it. They will suffer. Otherwise all directions are there. People have to take the advantage of direction, perfect direction, without any mistake, and they will be happy.