Climate change is recognised as the most urgent environmental problem we are facing today. Communication initiatives can play a key role in addressing people’'s perception of climate change possibly driving them to change their lifestyles. The Institute of Biometeorology of Italian National Research Council realised in 2006––2007 a communication campaign through a science exhibition visited by more than 2000 students with the aim of raising awareness on climate change impacts and sustainability “"good practices”", involving also 240 students in a carbon diet contest. This work describes the concept of the educational exhibition and the impressive carbon cuts obtained by students.