Yes mutate the soil

For decades you pump chemicals into the soil, you change the DNA of the plants grown in that soil, and you find that the weeds in that soil are different, stronger, weird weeds. This soil is so different now that I would wager even a normal seed (a heirloom seed) would probably not grow in this soil, so not only do we have an ocean filling with oil, we have soil that can not substain life in it's current state, unless that seed that is planted in that soil is also modified by man, this is not good, this is really very, very, very bad!!