Build a biomass energy market

摘要

Biofuels - which include wood, straw, charcoal, ethanol derived from corn (maize) and methane -rich biogas - currently generate about 10% of the worlds energy, or 53 exajoules. The majority goes towards heat, with the rest used for electricity and transportation (see 'Biomass boost'). But biofuels hold the potential to deliver at least one-quarter of the world's projected energy needs of 623 exajoules by 2035 (ref. 2).