In some areas a non negligible part of recycling goes to incineration because incinerators can't work without enough fuel and cardboard, paper and plastics are

In some areas a non negligible part of recycling goes to incineration because incinerators can't work without enough fuel and cardboard, paper and plastics are necessary. And in some other places any contaminated recycling (oil, food residues etc) is redirected to landfill/incinerators.