https://www.massarate.ma/cleaner-air-due-to-coronavirus-lockdowns-raised-temperatures-worldwide-in-2020-because-there-were-fewer-emissions-blocking-sunlight-study-reveals.html مسارات للرصد والدراسات الاستشرافية Thu, 04 Feb 2021 09:38:40 +0000 hourly 1 https://wordpress.org/?v=6.1.6