History of the Montreal Protocol

[@karinaadcock]

If you want to see more videos about the ozone layer click the link ua-cam.com/play/PLVe64sIb7fSYa-rr9cbSOigAtjRNwpuXv.html

[@atefalmalky9268]

Thank you well done and well explianed

[@mcbmghome]

Really well made

[@SHM0001]

What the freak

[@aaronboren5851]

You’re just now getting it.