now turbine makers siemens gamesa has had a breakthrough.he world's biggest blades at its site here. and while this one looks like any other, it can be recycled. it all comes down to a resin called epoxy, which acts like a really strong superglue, binding together the fibreglass, binding together the fibreglass. usually, this is incredibly tough to break down, but not here. we change something in the backbone of the chemistry, this has gone through our recycling process, we just turn it around. you can see all the different glass hairs placed through in the production of the blade and how they are separating from the blade. to do that, it needs to be soaked in a big bath of mild acetic acid. after a few hours at 80 celsius, you get the result you see here. so it's just like vinegar in a supermarket? exactly. exactly like you would make pickles or descale your coffee pot. i can actually smell that. there is a scent of vinegar coming from the blade. this won't tackle today's waste, but when these blades retire, the materials could go into maki