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barry barry
wrote...
Posts: 11630
11 years ago
If CFCs have not been widely used since the late 20th century, why are they considered a major greenhouse gas in the 21st century?
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Answer accepted by topic starter
robertlingrobertling
wrote...
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11 years ago
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barry Author
wrote...
11 years ago
Thanks Rob - Marking this solved
wrote...
Valued Member
9 years ago
No worries, barry Slight Smile
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