On a riverbank in Stockton, California, a row of ordinary-looking poplar trees is quietly doing something most passersby would never guess. According to a 2021 EPA Science Matters report, the amount of contamination in the runoff water was 99% less than the polluted water that was fed into the planted systems that year. If this seems like too easy to be true, it is. But that doesn't mean the problem is solved. Here's the whole, truthful story.
The site has a genuinely odd backstory
