Great point on environmental degradation. According to the Kuznets curve, the relationship between GDP and pollution is an inverted U. The Tigers have for the most part, moved past this and I think China's on the falling side of the upside down U though uneven between regions. I'm highly supportive of eco-tourism and I think South Asia has a great opportunity to to take advantage of this. Creating a niche, specializing, and then investing in the competitive advantage will create great benefits. However, will the unique cultures be diluted and commercialized when hoards of tourists come in? Sri Lanka is especially keen on attracting Chinese tourists due to their spending habits.