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6) The annual ozone hole over the Antarctic has been found to be at its smallest since the 1980s. Explain what causes the hole, and what does the small area this year mean in the context of climate protection efforts?(250 words)

Topic  Conservation, environmental pollution and degradation, environmental impact assessment. . 

6) The annual ozone hole over the Antarctic has been found to be at its smallest since the 1980s. Explain what causes the hole, and what does the small area this year mean in the context of climate protection efforts?(250 words)

Indianexpress