[lemma=eruption] [word=could] [□=□]
[lemma=eruption] [word=could] [tag=□]
[lemma=eruption] [word=could] [lemma=□]
Further , despite such commitments , the ozone layer will be at its most vulnerable over the next decade , when peak halogen abundance 's will occur , and during which time a cold , protracted Arctic winter or a large volcanic eruption could accelerate ozone depletion resulting from human activities .