I remember when we were young in late fifties and sixties, weather transitions were fairly uniform. The farmers whose hard work can turn to dust till the crops are harvested and safely brought home, were fairly confident about weather. We saw only poor monsoons once in a while and crops failing badly and food scarcity. In those days farming was dependent on the blessings of nature especially for water. The variety of crops and food items was not much. Only native seeds were used and often mixed crops were raised. For example, wheat alongwith sprinkle of barley or mustard. Only those crops were raised in the same field which did not use the same nutrients. Number of crops raised were limited and land was kept fallow in cycles to restore its fertility. In those days agriculture was not considered a business.
Slowly all this has changed. Land has been drained of its nutrients by raising two or three crops in a year. It is in fact never given time to take a break.
Over the years, the weather is becoming highly wayward or unpredictable. It seems that old theory about how the monsoons in the North India began in Assam and water laden clouds were then directed towards western India from Bengal to Bihar and then Uttarpradesh and Punjab side. Rajasthan however remained a dry area, is not true anymore. Rains can precipitate anywhere. For example many areas of Rajasthan and Gujarat were innundated while states which were regular recipients of monsoon remained devoid of.
Environmentalists say all this is happening due to our activities. Global warming due to carbon dioxide blanket is told to be the culprit. It is the same carbon dioxide which once was the only gas in the atmosphere alongwith water at the beginning of the Earth. The bacteria changed it all fixing the carbon dioxide in the form of oxide minerals and sugars in plants. All this seem to be too true. Such events had taken place many times in the life span of the Earth. Nature is too big to be manipulated by the humans. May be there are minor additions. We see now more rains, floods and more cold weather in India.