In the last couple of centuries, humans have done a strange thing: We’ve dug the biggest pits, the deepest holes, and the longest tunnels the world has ever seen, all to find the most insidious and subtle poisons known to our mammalian bodies, remove them from deep inside rocks where they had lain sequestered for eons, and concentrate them in the places where most of us live. We’re starting to think this maybe wasn’t a good idea.
I say “we,” of course, but this isn’t a guilt trip; most of this was before your time, and you didn’t vote for it anyway. You and I use small amounts of heavy metals and fossil fuels in our own lives – driving, flying, heating, buying plastic products, just looking at this on a computer – but it’s very difficult to avoid doing so and still living in the modern world.
The consequence of so many people doing so many of these things, though, is that any urban area – and many rural ones – will have splotches on the map with large quantities of toxic materials in the ground. If you live where a gasoline station used to be, or a factory, a garbage dump, or any number of other things, you might have things in your soil you don’t want in your stroganof.
Read Use Plants to Clean up Toxic Waste by Brian Kaller at Resilience.org