- Natural causes - Resource pack page 33

'Deforestation is the main cause of global warming'. How far do you agree with this statement? Support your answer using evidence. [6]

INTRODUCTION


Point 1 - Deforestation
Elaboration
Example

Point 2 - Variation in solar output
Variation in solar output is another factor causing global warming. The sun emits varying amount of solar radiation due to changes in its magnetic field. 

Elaboration
Occurrence of sunspots may cause an increase in the global temperature. Sunspots are cooler regions on the sun’s surface that appear as dark spots. The areas surrounding the sunspots will radiate more energy, which compensates for the lower temperature of the sunspot areas. 

Example
For example, a peak in the number of sunspots in 2000 coincided with higher solar activity. 

CONCLUSION