[bruinbirdman]

"At one time over 25% of land was growing transportation fuel - for horses. Imagine how much would be required to put a dent in world energy demands today."

Some landfills are currently tapped for methane (microbes are converting biomass into gas). Some vehicles have been converted to burn natural gas.

Corn (a grass) and switchgrass are being fermented by microbes into ethanol.

The process is not new.

yitbos

[D-fendr]

I’m not opposing capturing some waste energy, but the idea that energy from biomass is a feasible strategy for supplying our energy requirements is a dead end.