Then fork the material from the previous stack over into the empty enclosure. The more often you turn the pile the faster decomposition happens. A hay fork is the easiest tool to turn with. By digesting the browns, the micro-organisms get the energy for their work. Use a mower or shredder, if available, to reduce the particle size.
Smaller particles have more surface area and accelerate the rate of composting.
They contain nitrogen compounds that are important in allowing the population of micro-organisms to grow. Nitrogen is the key element in protein which is needed to make the tissue for more animals. The greens are also the source of most bad smell related to composting. They should be mixed completely or at least in layers with drier brown materials. Too much green material can collapse in volume and loose its air, and putrefy.