Imposition or standard ? A complex dilemma 1. The consequences of the taxation in terms of profit 1.1 the problem of the regressive effects 1.2 the international coordination of the environmental policy 2. The regulation 2.1 The practical advantages 2.2 The preserve effects 2.3 The Precautionary principle 3. The future Perspectives 3.1 Local or systemic point of view ? 3.2 The guidelines 3.3 Toward an important approach It is true that the users have to bear , even it is the only part , The consequences of an environmental Pigouvian tax We could affirm that in last analysis the enterprises manufacture the property that the users require Therefore , the users are somehow “responsible“ of the pollution that is taken place In this way, the system shows to the producers that to the users that the property “costs“ in environmental terms And therefore, it discourages partly the diffusion Decreasing Increasing the profit of the first one the price paid by the second The problem is in the fact that this discourages the consumption from the poorest, which has the price reference to the possibility of acquisition The environmental tax has therefore a deteriorated effect ! And yet they would compensate the individuals more affected from the tax using activity that go in favor of the poorest For example compensating it with a reduction of the taxes on property of first necessity An analogous discourse can be worth for the enterprises more affected by The environmental taxation But the true and deep problem is The international coordination of the environmental imputes A country that apply it suffer unilaterally from her notable losses of competitiveness But the coordination will be very difficult because every country will try to leave the agreement Temptation will be very strong as more countries have intention of agreement But o the other hand the level of the tax must differ from country to another , according to the potential pollutant of adopted technologies And this opens ulterior space for interested manipulations ! In the practice , despite their limits, the based environmental standards on the command and control approach end up to be more used by the environmental taxes The motivations for the practical preference of the command and control approach Are: small need of information for a “ reasonable “ application Possibility to fix some standard in application of a predetermined political objective Great pleasure on political and administrative level For the enterprises the introduction of the standards is more attractive because they maintain great borders of negotiation with The public authority The standards can become a profit barrier to the entry of ulterior enterprises in an industrial sector ! However attractive , the system of the standards ends to ”grow lazy“ the enterprises and to encourage it to defend its recent situation Rather than to take brave decisions of investment, technological restructuring and therefore in last analysis of safeguarding some environmental resources It is always needed to accompany the standards with incenti9ve measures in which the entity of the profit is proportional to the observance degree of the environmental policy of the enterprises The greatest reasoning in favor of the standards has least safety If in fact it arrives near to critical matters of pollution , discouraging the productive activity through the taxation could require levels of prohibitive imposition In the long period, the fixation of standard can make easier the definition and the verification of objectives of sustainable development The precautionary principle has sense when it is in absence of knowledge And / or certain proofs around the environmental effects of determined polluting emissions The precautional principle has sense When it is opportune that the burden of the proof around the environmental sustain of determined emissions is asked the pollutant rather than the pollutes We pass potentially from the logic of the damage compensation to those of the harmful action verification The future perspective of the polluting emissions regulation focalize on the following themes: More precise standards of environmental quality Reduction of the physical risks related to the pollution Containment of the control pollution costs In very case we need to understand that a “sector “ approach focused on an only source of pollution and / or an only natural environment is not able to give disappointing results The environmental effects of the polluting emission are typically systematic On the other hand, a comprehensive approach that pretends to hold potentially all the remarkable information results to be non reliable As usual it is necessary to reach a perfect compromise! From the international coordination point of view, the force is to reach the standard environmental least uniforms Or varying according to defined criterions that keep track of differences between the situations of the varied countries The principles that are emerging from the theories are the followings: Beside the already known principle of “Who pollutes pay“ (PIP) And to the precautionary principle, we have: The principle of the efficiency / economic effectiveness of the standards The principle of subsidiaries , that decentralizes the management of the environmental problem up to the administrative level (more local) possible The principle of the legal efficiency, that underlines the criterion of the legislative provisions applicability The definition of the standards must center on an evaluation of the Consequences in terms of the environmental quality and comfort of the polluting emissions more than the definition of the admissible technological options Even if naturally it is more easy to prescribe to the enterprises to do something rather than to obtain a determined result