Energy is the main resource all living beings count on, however, the way in which the man produces and uses energy today is not sustainable: our main energy sources are fossil fuels (petroleum, coal and gas), which are scarce resources, pollutants and are unequally distributed at a geographical level. This situation brings about great environmental, social and economic costs. In spite of this, it is the scheme we have been replicating all over the world for the last 250 years.
For a while now we have become more aware of the need for a change. The effects of pollution in our environment and global warming are warnings that measures must be taken.