Yes, like plutonium, but we're not going to be dumping that all over the place either.
Cyanide is also "natural" but not great for our health depending on the context. The same for the "chemicals" that, when burned, cause some nasty stuff compared to if it wasn't burned.
Cyanide is also "natural" but not great for our health depending on the context. The same for the "chemicals" that, when burned, cause some nasty stuff compared to if it wasn't burned.
* I love burning wood.