Topic-Salient features of world’s physical geography.
2) Volcanic eruptions in the tropics can trigger El Nino events and create a dramatic global impact on the climate . Comment.(250 words)
Why this question:
It is about analysing how volcanic eruptions can trigger El Nino events and thus impact global environment. The article captures the study focused on the Mount Pinatubo eruption – the largest and best-documented tropical one in the modern technology period which ejected about 20 million tonnes of sulphur dioxide.
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Demand of the question:
This question seeks to examine the role of volcanic eruptions on the phenomena of El Nino and their significant impact in climate change.
Comment– here we have to express our knowledge and understanding of the issue and form an overall opinion thereupon.
Structure of the answer:
Start with brief introduction on the concept of El-Nino.
Discuss the following points in detail:
- The concept of El Nino
- The link between volcanic eruption and El Nino.
- Its impact on global climate.
- Quote examples of recent El-Nino events that manifested volcanic eruption as the driving cause – Mount Pinatubo eruption.
Conclude with the fact that one cannot predict volcanic eruptions but one can be prepared with such pre known linkages.