form carcinogens they also see into fields contaminating the soil one of the most famous cases of die clayson ing is china's hsien river which in twenty eleven turned red as a result of several dumps of illegal dry. natural dyes meanwhile are biodegradable made from plant sources like logwood turmeric and pine wood animal or insect sources like the dyes lack and lip and mineral sources like red lead used as the million laminated red earth and sink white effluent from these are easily accepted back into the environment. however biodegradable natural dives are not necessarily the most sustainable option because for one rule materials for natural dies require vast stretches of arable land second a much larger amount of natural dye is needed as compared to synthetic diet to color the same amount of fabric for example while one pound of cotton may be died with just five grams of synthetic dying it would require two hundred thirty grams of natural die for the same process this means the use of larger amounts of water so what could be a solution recycling better waste management and innovation but f