Now the focus was on mega-mergers, mostly between regional competitors withconsiderable overlap, in a bid for economies of scale that would let the industry switch its focus from competition between rail firms to competition with trucks.
While presently only 0.03 TW of energy was extracted from wind in 2008, and there is room for aconsiderable expansion of this technology with relatively insignificant effects on the climate, any future expansion on a global scale must take account that the potential for extraction of wind energy is finite according to the nature of the Earth system.