Slightly on the topic of removing toxic waste:
A hairdresser noticed that with oil spills, one of the biggest issues was the impact on wildlife because oil loves clinging to fur and feathers.
They used felting methods to create like a mat of hair & used it on a small scale test & it worked really well, the hair mainly stayed on top of the water like the oil & absorbed it like a sponge while leaving creatures & plants alone.
NASA is now working on large scale uses with the help of donated clippings from hair dressers and pet groomers.
And the hair can then be composted with the help of mushrooms.