1 点作者 lotsofmangos将近 10 年前

2 条评论

It all ends up in the ocean, which has been recycled by the hydrologic cycles millions of times. SO its all sewage, millions of times over.

lotsofmangos将近 10 年前

It works for Singapore - <a href="http://en.wikipedia.org/wiki/NEWater" rel="nofollow">http://en.wikipedia.org/wiki/NEWater</a>

Californians may have to drink their own sewage as last resort for water crisis