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.
Directive word:
Comment– here we have to express our knowledge and understanding of the issue and form an overall opinion thereupon.
Structure of the answer:
Introduction
Start with brief introduction on the concept of El-Nino.
Body
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.
Conclusion
Conclude with the fact that one cannot predict volcanic eruptions but one can be prepared with such pre known linkages.
