The field of renewable resources crosses several scientific disciplines (agriculture, biochemistry, chemistry, technology, environmental sciences, forestry), which makes it very difficult to have an expert view on the complicated interaction. Therefore, the idea of creating a series of scientific books, focusing on specific topics concerning renewable resources, has been very opportune and can help to clarify some of the underlying connections in this field.
In our fast changing world, trends are not only characteristic of fashion and political standpoints, science also is not free of hypes and buzzwords. The use of renewable resources is again more important nowadays, however, it is not part of a hype or a fashion. As the lively discussions among scientists continue about how many years we will still be able to use fossil fuels, with opinions ranging from 50 to 500 years, they agree that reserves are limited and that it is essential not only to search for new energy carriers but also for new material sources.