The Best Ways to Use Renewable Energy

Biogas (6/13)

A worker adjusts a gas pipeline inside a biomass gasifier power plant in eastern Indian village of Gosaba serving about 1,200 local families with power.
Biomass refers to a variety of ways to convert organic matter into energy, often through combustion or the production of gases and liquid fuels. Biomass heat is the second most important source for renewable power. (Photo: Reuters)