bobbilly said:
Do you think they will eventually ban plastic backed nappies?
They can't even attempt it until there's a good alternative available. You can't just ban something that people need or even the honest people are just going to ignore your ban or find ways to beat the system.
Also by "alternative" I mean something that serves most of the primary functions. For disposable diapers, this includes the disposability, low cost, and convenience, which are features that cloth diapers for example do not offer.
It's not like this is a problem nobody has been trying to solve - disposable diapers have been getting optimized for years and I doubt there's going to be any new discovery that starts out a new design that comes close enough to the performance of current plastic disposables to be seriously considered.
I'm still waiting for the "true recycling revolution" to begin. We're not throwing away and burying trash, we're burying what will turn out to be
valuable resources years from now. I expect in 30 years we will have entire industries centered around excavating landfills to reprocess and recycle what's been buried in them. There will come a time when resources like copper are available in higher concentrations in a landfill than in any mine.
The basic problem is separation of materials. Even now we tend to go for the "low hanging fruit", where what we want is in high concentration and little effort has to be done in separating out what they want from what they don't want. Dumps (and things like circuit boards) are the enemy, they have a very fine mix of a wide variety of things that are either mechanically difficult to separate, are mixed together in too small of pieces, have too great a variety of different materials, or a combination of those traits. The gathering of materials is not the problem - there's a virtually unlimited supply. The problem is in the
separation. We're still not very good at that, and I think that's where the innovation needs to come from.
Extracting one thing without ruining something else you also want is a problem too. For example, you can incinerate a circuit board to get the metals like gold, silver, and copper, but that destroys any plastics and generates lots of toxic compounds you then have to deal with, many of which if broken down into safer pieces are of little value. I envision a future miracle recycling machine that you just drop
anything into the chute at the top and it does its thing, and down below there's a hundred bins that the elemental components drop into. A bin that starts filling with carbon powder, another one filling with copper powder, a cylinder filling with oxygen, etc. I don't know if we'll ever get there, but that's the ultimate solution to garbage AND resource scarcity at the same time, and will make questions like "paper or plastic?" no longer matter.
Limiting plastic diapers doesn't fix the problem, it only postpones the inevitable. One way or another, until you are recycling everything, the dumps just keep getting fuller.