'Ozone hole vigilance still required' October 07, 2019 at 04:00PMhttps://https://ift.tt/35byHtz It may be the smallest ozone hole in three decades but scientists are warning against complacency.

It may be the smallest ozone hole in three decades but scientists are warning against complacency.

from BBC News - World https://ift.tt/2np5oCw