The arrival of humans in an area, to live or to con-duct agriculture, necessarily has environmental impacts.These range from simple crowding out of wild plants infavor of more desirable cultivars to larger scale impactssuch as reducing biodiversity by reducing food availabil-ity of native species, which can propagate across foodchains. Theuseofagriculturalchemicalssuchasfertilizer and pesticides magnify those impacts. While advancesin agrochemistry have reduced those impacts, for exam-plebythereplacementoflong-livedchemicalswiththosethat reliably degrade, even in the best case they remainsubstantial. These effects are magnified by the use ofolder chemistries and poor management practices.