How is the Ozone layer healing?
Answers
ᴀɴ "ᴜɴᴘʀᴇᴄᴇᴅᴇɴᴛᴇᴅ" ᴏᴢᴏɴᴇ ᴅᴇᴘʟᴇᴛɪᴏɴ ɪɴ ᴛʜᴇ ɴᴏʀᴛʜᴇʀɴ ʜᴇᴍɪsᴘʜᴇʀᴇ ʜᴀs ʜᴇᴀʟᴇᴅ, ʙᴜᴛ ᴜɴʟɪᴋᴇʟʏ ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ɪᴍᴘᴀᴄᴛs ᴏғ ᴡᴏʀʟᴅᴡɪᴅᴇ ᴄᴏʀᴏɴᴀᴠɪʀᴜs ʟᴏᴄᴋᴅᴏᴡɴs, sᴄɪᴇɴᴛɪsᴛs sᴀʏ. ... ᴀ "ʀᴇᴄᴏʀᴅ-ʟᴇᴠᴇʟ" ᴏᴢᴏɴᴇ ʜᴏʟᴇ ᴏᴠᴇʀ ᴛʜᴇ ᴀʀᴄᴛɪᴄ – ᴛʜᴇ ʙɪɢɢᴇsᴛ sɪɴᴄᴇ 2011 – ʜᴀs ɴᴏᴡ ᴄʟᴏsᴇᴅ, ᴛʜᴇ ᴜɴ ᴡᴏʀʟᴅ ᴍᴇᴛᴇᴏʀᴏʟᴏɢɪᴄᴀʟ ᴏʀɢᴀɴɪᴢᴀᴛɪᴏɴ (ᴡᴍᴏ) sᴀɪᴅ ᴏɴ ғʀɪᴅᴀʏ.✨✨
Answer:
The phenomenon was driven by ozone-depleting substances still in the atmosphere and a very cold winter in the stratosphere — the layer of the earth's atmosphere that lies between 10 and 50 kilometers (six to 31 miles) above the earth — Reuters cited WMO spokeswoman Clare Nullis saying at a UN briefing in Geneva.
"These two factors combined to give a very high level of depletion which was worse than the one we saw in 2011. It's now back to normal again ... the ozone hole has closed," she said.
Scientists monitoring the hole at the Copernicus Atmospheric Monitoring Service (CAMS), a European Union earth observation program, announced the closure last week.
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