Ozone layer may be restored in decades, UN report says
A global agreement in 1987 to ban chemicals harming the ozone layer is working, scientists say.
from BBC News - World https://ift.tt/24OyzSo
https://ift.tt/24OyzSo
from BBC News - World https://ift.tt/24OyzSo
https://ift.tt/24OyzSo
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