Dodał:
Gall Anonim
23 wyświetleń
Krakow's smog problem and the attempt to cut coal - Krakow, Poland has some of the worst air quality in the world due to its heavy use of coal. CBC's Nahlah Ayed explores the innovative ways some people there ...
Dodał: Gall Anonim
Wyświetleń: 55
Dodał: Gall Anonim
Wyświetleń: 42
Dodał: Gall Anonim
Wyświetleń: 35
Dodał: Gall Anonim
Wyświetleń: 32
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