Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv (World Health Organization) kwv yees tias kaum tawm lab tus tib neeg thoob ntiaj teb raug mob raws plab txhua hnub thiab muaj 1.7 billion tus neeg mob raws plab txhua xyoo, nrog rau 2.2 lab tus neeg tuag vim mob raws plab. Thiab CD thiab UC, yooj yim rov ua dua, nyuaj kho, tab sis kuj muaj cov pa roj carbon ...
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