Fossil fuel energy sources are limited. Most of the world’s oil, gas and coal come from areas of the world that cannot be considered as politically stable. Experts may disagree on the level of reserves, but resources are being depleted and new sources are not being found at the same rate. Also the rapid development of emerging economies is adding to the energy demands of limited fossil fuels. This reality is now causing pressure on traditional energy resources and with increasing demand, it´s predicted to see continuing price rises. At the same time, the consumption of fossil fuels inevitably leads not only to pollution, but also to ever increasing CO2 emissions. The impact of this on the global climate is now at the very top of political agendas all over the world.
Experts have estimated that oil reserves will be exhausted in about 40 years, with uranium and natural gas not lasting much longer.