[...] The 2011 report of the International Energy Agency (IEA) reveals that globally, energy sources are not diversified. Coal and oil represent together about 60 percent of the world energy supply, 80 percent if we add natural gas. Alternatives or renewables &#8211; hydro energy, geothermal energy, and wind energy &#8211; represent together less than 3,1 percent of the world energy supply (IEA report 2011). At the same time, non-OECD countries, with China and India leading the way, are demanding more energy resources, representing almost 93 percent of increase in demand in energy in 2010 according to the IEA World Economic Outlook 2010. The same report also estimates that oil peak should be reached around 2020, making the situation more problematic. Additional explosiveness is added by the fact that transforming coal, a very likely substitute for oil after the peak, into energy is very unfriendly to the environment, at least with technology available today. Soucre: Perpetualminds [...]