In Taiwan, beach clean-ups have become very popular with environmental NGOs over the past decade. But without investigating where the trash came from we will never properly be able to tackle this problem. 10 years ago, a number of NGOs in Japan and Korea addressed this issue and came up with a very cool solution. They invented a technique called rapid assessment that is a scientifically sound and efficient way to survey a coastline and figure out where the trash hot spots are and to estimate the volume of trash at a specific location..
