Why in news?
- An IISc. Paper published recently says – One of the major reasons for the variation in monsoon is the increase in water vapour due to increase in temperature.
- In the next 100 years, the water vapour is also likely to increase, which will result in increase in rainfall.
- The Indian monsoon rainfall increased from the last glacial maximum to the present.
- With the concentration of carbon dioxide in the atmosphere going up, resulting in more water vapour, rainfall is expected to increase in the next 100 years.