Efficient incineration requires dry, energy dense garbage. Thus you need a population that recycles paper, PET, glass and compost religiously, so that all that

Efficient incineration requires dry, energy dense garbage. Thus you need a population that recycles paper, PET, glass and compost religiously, so that all that is left to burn are hydrocarbons like plastic. If Americans "are terrible at recycling" as the article says, then the incinerators will be burning the wrong stuff.