Synthetic & petroleum-derived pigments.
Color additives are everywhere around us. Yet, most of them are toxic or possible carcinogens, and derived from unsustainable sources such as petroleum or coal.
More frequent & severe algal bloom due to human activities, such as farming & urban pollution. There is no direct measure to clean up algal blooms when they happen, resulting in deoxygenation which suffocates fishes and other marine organisms.
Can we upcycle these harmful wastes?