Declining UV light on the N. Hemisphere. Winter is coming https://t.co/qfhRx8dxwf
— Gregor Peter (@L0gg0l) September 25, 2020
Declining UV light on the N. Hemisphere. Winter is coming https://t.co/qfhRx8dxwf
— Gregor Peter (@L0gg0l) September 25, 2020