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“Global change” is a complex term still widely unknown, and often confused with climate change. The Spanish Secondary School Curriculum indicates that the idea of global change is absent. Globalchange components are distributed among different subjects and courses. This scattering of the subject matter hinders students from gaining a cohesive understanding of global change and its implications. The main objective of this proposal is to develop an educational approach aimed at expanding children's knowledge regarding global change, and fomenting awareness of the interrelations between human actions and this environmental crisis. In addition, we seek to aid students in understanding that the adoption of certain practices could help them achieve a sustainable lifestyle. To this end, we have designed and manufactured a prototype board game called “A Planet on the Abyss”, with a cooperative play. The pilot study realized have showed that the students recognize that Global Change incorporates more components than climate change and the students related Global Change with an anthropocentric origin and they became to use new terms, such as habitats, ecosystems, deforestation, etc.

The aim of this study was to establish the temporal trends and spatial distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Ria de Vigo by means of studying the PAH burden in wild mussels. The samples were collected in eight sites along the margins of the Ria de Vigo during November from 1998 to 2008 and Polycyclic Aromatic Hydrocarbon contents were determined using high performance liquid chromatography-fluorescence derivatization (HPLC-FLD). Quality of chemical analysis was guaranteed by participation in QUASIMEME intercalibration exercises carried out during the period of analysis. The concentrations for the sum of 13 PAHs were in the range 24-480 μg/kg dw, typical of an urban and industrialized area (50-500 μg/kg dw) except for a punctual input in La Guía in 1998 that led to a concentration above 1,000 μg/kg dw. In general, the sites in the outermost section of the estuary (ría) showed the lowest values, with an increasing gradient in the medium and inner parts of the ría. Temporal patterns show, in general, a downward trend. The relative proportion of 3 and 4 ring PAHs also varies with the site, the former being predominant in the outermost area and the latter in the medium and inner parts of the ría. This is consistently related with the sources and processes taking place in different areas of the estuary.