Other agricultural production goods include timber, fertilizers, animal
hides, leather, industrial chemicals (starch, sugar, alcohols and resins), fibers (cotton, wool, hemp, silk and flax), fuels (methane from biomass, ethanol, biodiesel), cut flowers, ornamental and nursery plants, tropical fish and birds for the pet trade, and both legal and
illegal drugs (biopharmaceuticals, tobacco, marijuana, opium, cocaine).
«Our hypothesis in the earlier published work was that transforming vacant lots from being overrun with weeds and filled with trash to a clean and green space may make it difficult for people to
hide weapons and conduct
illegal activities such as
drug use in or near the space.