> How much depends on the local facilities and how they handle it?
None of it. With a few exceptions, non-metals take significantly more energy to recycle than to make from scratch and the end result is lower quality than the recycled material. Since that energy usually comes from fossil fuels, it's just pumping more CO2 in the atmosphere to save a tiny bit of landfill space, which isn't even remotely a pressing issue for our civilization (we have lots of space!)
Metals like aluminum and steel take more energy to make from scratch (ore) than to recycle, so they're worth recycling and anywhere from 50-80% of the steel and aluminum feedstock in the world is from scrap metal.
It also makes sense to recycle stuff like old tires because those turn into massive ecological hazards when they burn.
There is more to recycling than energy consumption.
For example, wood is a limited resource. In many parts of the world, almost all growth outside protected areas is harvested and used. By recycling paper and cardboard, you make wood available for higher-value uses.
Household waste is often incinerated. Even if you are not going to recycle glass, it can make sense to separate it from general waste.
Energy is only one part. The full dollar cost should be accounted for. Wood is abundant in parts of the world. For those parts it probably makes no sense to recycling but we should let the market figure it out.
Wood is abundant in Canada, Russia, and some developing countries. Other developed countries (including the US) are densely populated enough to use everything they manage to grow.
Here in Finland, paper recycling started in the 1920s, and it was first purely for economic reasons. Household paper collection started soon after WW2.
None of it. With a few exceptions, non-metals take significantly more energy to recycle than to make from scratch and the end result is lower quality than the recycled material. Since that energy usually comes from fossil fuels, it's just pumping more CO2 in the atmosphere to save a tiny bit of landfill space, which isn't even remotely a pressing issue for our civilization (we have lots of space!)
Metals like aluminum and steel take more energy to make from scratch (ore) than to recycle, so they're worth recycling and anywhere from 50-80% of the steel and aluminum feedstock in the world is from scrap metal.
It also makes sense to recycle stuff like old tires because those turn into massive ecological hazards when they burn.