Prelims Perspective: What needs to be learned
- La Niña and El Niño comparison
- Cause and Effect
Mains Perspective: Notes need to be prepared
- Impact of La Niña and El Niño upon the Indian monsoon (GS I – Geography)
What needs to be known?
- La Nina
- La Niña and El Nino are climate patterns resulting from variations in the equatorial Pacific Ocean temperature.
- La Niña is characterised by the cooling of ocean waters along the west coast of South America. El Niño is the warming of Pacific waters on a periodic basis.
- Impacts
- Variation in monsoon rain may cause floods and droughts.
- Fisheries boom due to phytoplankton growth.
Source: Dowth To Earth