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    London to Sao Paulo
    1:38
    Climathon | Air Pollution
    0:50
    Megacity Pollution
    1:07
    Protests in Brazil's capital turn violent
    1:32
    Dürr: Air pollution control systems
    1:22
    Toxic Foam Covers River in Brazil
    0:29
    Pollution Pods - Experiencing air pollution
    1:00
    Amazon wildfire smoke spreads across Brazil
    1:48
    Growth of São Paulo, Brazil (1905-2014) - Megacities
    0:39
    NAROO MASK against Air pollution Brazil
    1:29