The study aims at assessing the situation of the pollutions - the classical ones as well as those of new kinds, from telluric or maritime origin – in the Mediterranean Sea. On these basis, it assesses the consequences of these pollutions in the light of the economic, demographic and climatic developments, which are foreseen at the end of the next 20 years I. UNIFY POLITICAL GOVERNANCE WITH REGARD TO FIGHTING POLLUTION IN THE MEDITERRANEAN II. ACTIVATE RESEARCH PARTNERSHIPS FOR THE MEDITERRANEAN ENVIRONMENTS 1. Create in France a research alliance for the marine environments of the Mediterranean. 2. Institutionalize cooperation among the main research institutes of the northern Mediterranean countries. 3. Sponsor the laboratories of the southern and eastern states. III. MODIFY THE CONDITIONS GOVERNING THE PROVISION OF FINANCIAL AIDS TO ANTI-POLLUTION INVESTMENTS IV. DEAL WITH THE PAST 1. Eradicate the rerelease of products banned for decades. 2. Treat pesticide stocks. 3. Determine the age of oil platforms. V. PREPARE A SOLUTION TO DEAL WITH THE DEVELOPMENT OF POLLUTIONS GENERATED BY THE IMMATERIAL ECONOMY VI. BETTER TAKE INTO ACCOUNT THE FUTURE CONSEQUENCES OF CLIMATE CHANGE 1. Increase the research effort. 2. Implement financial instruments suited to the permanent features of climate change. VII. STRENGTHEN THE FIGHT AGAINST ILLICIT HYDROCARBON DISCHARGES AND COOPERATION IN THE EVENT OF ACCIDENTAL SPILLS 1. Develop the use of satellites. 2. Standardize the information systems for maritime traffic. 3. See to the application for the entire basin of those agreements providing for the installation of equipment to treat bilge water and mud. 4. Pursue initiatives for the standardization of judicial procedures and sanctions. 5. Perfect the application of cooperative agreements governing accidental spills. VIII. INCREASE THE SAFETY OF MARITIME TRAFFIC IN THE MEDITERRANEAN IX. PAY PARTICULAR ATTENTION TO CERTAIN RESEARCH SUBJECTS 1. Systematize studies on the effects of pollutants on marine environments. 2. Increase research on emerging pollutants. 3. Consider the risks of the sea's polymerization. X. REACTIVATE THE POLICY OF CREATING MARINE PROTECTED AREAS 1. In the French Mediterranean. 2. Throughout the basin.