Many social actors are mobilized in Eastern and Western Europe for environment and climate protection; they claim, as citizens, the respect of international treaties. On each different topic, European countries do not share the same view and generally, Eastern Europe is barely concerned about the environment: A political engagement in favor of environment protection is often lacking as well as a support from the population and civil society. On the other side however, there are remarkably engaged, creative and perseverant people and NGOs who try their best to implement sustainable development in daily life.