Short of waste?

It seems that while some countries are producing more waste than can be handled, others have managed to actually create energy out of it.  This must be the ultimate achievement of recycling. Oslo, whose environmental policies have made it one of the cleanest cities in Europe transforms rubbish into electricity,but  now faces another problem. According to New York Times now they are even short of it…

A short listening extract available here:

Why have they run out of garbage?

Why is it harder now for Oslo to import it?

Which downsides of trash incinerators have been pointed out ?

How many proposals for building trash incinerators are there?