Abstract
These last years, we discovered the development of many ecological concepts as sustainable development became respected and understood by people and so consumers. As the Ademe, (French Environment and Energy Management Agency) shows, from 2006 to 2008, 66% of French people feel concerned by environment protection against 53% in 2006. In 2008, more than half of people questioned were worried by global warming (57%), water shortage (56%) and pollution (51%). Thanks to Copenhagen conference about climate in 2009 (from the 7th to the 18th of December) countries committed themselves to sustainable development. For example, to reduce carbon emissions or greenhouse gas effects.
But this conference was a failure, which is why, one-year later politicians met again in Cancun about climate from the 29th November until the 10th of December 2010. The emergence of new eco-friendly companies with eco-friendly produgives a big impact on people's consumption habits. Then some new kind of buying appears. The most famous was fair trade thanks to Max Havelaar concept. It is an association supporting small producers (as coffee), and not big multinationals or developed countries companies.
