I understand the notion that Japan is very clean and environmentally sound but it isn't entirely true. Japan is the #4 energy consumer in the world, and has had a number of bouts with air pollution, water contamination, and a number of other issues. They have a very high concentration of automobiles as well. Osaka (near Uji where a lot of tea comes from) is listed as moderate for air pollution, and second only to the lower portions of the country which are considered high.
They have had a number of major infections and pollution related health issues... a lot of this is what caused them to begin to even worry about being environmentally conscious. And while things may be getting better, a lot of damage has been done which will take time to filter out.
I'm not saying they are like China, but it isn't all pristine, lush, green and roses in Japan. I was just trying to point out that Japan isn't scott-free in all of this either.
- Dominic