From the invention of the steam engine to the present, water has represented a significant input to the energy system, although this has been mostly ignored in the literature. In Spain, the most arid country in Europe, ...

The relationship between energy and capital is one of the most important aspects of modern economic growth. Machines need energy to produce all the goods we enjoy; energy would be far less useful for humankind in absence ...

A better understanding of the relationship between energy consumption and economic growth is important for the less developed regions of the world such as Africa or Latin America, which future might be compromised by the ...