The aim of this communication is to present new focuses for research in the field of Information Systems and Ecology. In the first part, we will present, through a review of the literature, the rather negative role played by ICT on the environment: paper, transportation, consumption, waste… The aim of the second part is to discuss the rather positive role played by ICT with regard to knowledge of the environment: simulation, traceability, information… Many questions about research are then liable to be developed, and this will be the subject of the third part: in favour of research into the principle of Responsibility, users, businesses and those who govern.