Each day, Bangkok traditional sweets vendor Maliwan uses at least two kilograms of single-use plastic, with owner Watchararas Tamrongpattarakit describing plastic as "easy, convenient and cheap." Her case is just one of many which highlight the challenges facing negotiators hoping to reach the world's first treaty on plastic pollution this year. AFP found across five very different countries, including Thailand, that single-use plastic remains hugely popular as a cheap and convenient choice. IMAGES AND SOUNDBITES