Talking about serious ground pollution in regions of the US:
The New York Times reports that many residents of the city would like to try a different method: mushrooms. Yes, you read that last part right: mushrooms. If you didn’t know any better, you might be tempted to write these folks off as a bunch of old hippies on a crazy mushroom trip. Well, put this in your pipe and smoke it — many species of mushrooms are actually powerful bioremediators, natural organisms that help break down pollutants. They colonize contaminated soil, and then secrete enzymes that break down the offending chemicals into nontoxic components. The result is clean soil and lots of mushrooms.
Do the mushrooms taste any different?