Composting Is Winner in Food Waste Disposal Study

What’s the greenest way to deal with food waste? It all depends on what your municipality does with its wastewater—something most residents probably don’t know. The global warming potential (GWP) of most common landfill options is quite high, making the landfill universally undesirable, while some wastewater treatment options are far better than others. One method, which puts both gaseous and solid waste to good use, actually results in negative GWP. Composting and waste-to-energy are far better than most wastewater options, though—making generalizations about garbage disposals being green difficult to justify.