TEATA has been promoting green tourism for 12 years but international green tourusts accounted for fewer than 5% of the total tourist arrivals to Thailand in 2010. "We believe the proportion of green tourists will exceed 5% this year. Although the number of green tourists is still very small, global warming will spur growth in this segment in the future. Green tourists are very loyal and responsible," said TEATA adviser Duangkamol Chansuriyawong.