The environment is of no concern to people who have to scrounge around for plant waste by the roadside for their own stoves.

Yet other unusual recorded foods are dry leaves, plant waste, and old roots.

The larva also eat leaves and other plant waste.

The critical issue is making a breakthrough in the cost of cellulosic ethanol, made from plant waste or nonedible crops.

Mainly because they increase soil fertility so efficiently, but also because they reduce quantities of plant waste.

If the firm is successful, the process will allow fuel alcohol to be made from abundant plant waste instead of food grade corn.

The mushrooms were found growing directly from the acidic soil of the forest floor, surrounded by plant waste, during November.

The high temperature kills off weed seeds and many of the disease organisms in plant waste.

The operations can process plant waste and filter dirty water.

The ultimate goal is to use plant waste or dedicated energy crops-plants like switchgrass that grow easily and quickly.