Hauries d´instal.lar el plug-in del flash... Descarregar plug-in de Flash
Thursday, 24 May 2012
Find out the CO2 emissions associated with your daily life, from when you get up until you go to bed. You'll also find simple and practical ideas to help you reduce your carbon footprint as well as save money
Joan Sintes Matheu 16/12/2011 La meva intenció es coneixer quines variables utilitzar per fer aquest cálcul i els factors de conversió
Policy makers are ignoring climate change