Earth is also mother. The people are taking care of mother land, where he is born. That is good. But by the by they should take care of mother cow also. But they are not taking care of mother. Therefore they are sinful. They must suffer. They must have, there must be war, pestilence, famine. As soon as people become sinful, immediately nature's punishment will come automatically. You cannot avoid it.
Therefore Kṛṣṇa consciousness movement means solution of all problems. Teaching people not to become sinful. Because a sinful man cannot become Kṛṣṇa conscious. To become Kṛṣṇa conscious means that he has to give up his sinful activities. No illicit sex life, no meat-eating, no intoxication, no gambling. These are the four pillars of sinful life.