Cookie consent

We use cookies to improve your experience on this website. By continuing to browse our site you agree to our use of cookies. Tell me more | Cookie preferences

    A haze has periodically wafted over southeast Asia for 20 years. But despite public health fears, the problem remains as opaque as the smoke itself.

    Watch on CNN TV

    Showtimes

    Watch Vital Signs on CNN International:
    Wednesday January 21: 10:30, 17:30
    Saturday January 24: 06:30, 19:30
    Sunday January 25: 13:30
    Saturday January 31: 13:30
    Sunday February 1: 06:30, 19:30
    (All times GMT)

    The Best of Vital Signs