As one of the show's crucial themes was environmental awareness, the building had to be green. Harvard trained architect/engineer, Arthur Huang, who has a special interest in sustainable design, came up with the idea of the Eco Ark Pavilion. Each year Taiwan has to deal with 90 thousand tonnes of waste plastic bottles - Arthur was looking at ways to put that waste to good use in the construction industry. But with limited time and money and plenty of unknowns in the equation, the design team battled almost overwhelming challenges.