This transition occurred because of two reasons:
1. The global recycling market changed. Low, and in some cases, no demand in the global marketplace for materials such as glass and plastics #3 through #7, combined with the low value of mixed paper and high rates of contamination, have tripled the cost of processing recyclable materials over the past few years.
2. Contamination issues. If the recycling is contaminated with waste, the contaminated recyclables end up in the landfill. As a result of this transition, the recyclables will be converted into energy instead of being landfilled.