In this eTwinning project we explore the effects of climate change and environmental destruction and the need for sustainable development, study all aspects of sustainability and examine how it is put into action in Europe and in our home towns. The students will work in multi-national teams and their results will be uploaded to the TwinSpace as a central hub. As the students collaborate in international teams they have to speak English and improve their language skills. Additionally they will improve their digital skills by working on the TwinSpace and its tools like TwinBoard and other web 2.0 tools.