Environmental laws 

Environmental laws, areas of the national, regional legislation (as that of the European Union) and international, guided to the protection of the environment. The key elements of the legislation on the environment include the control of the contamination taken place by the human being and the protection of natural resources as the fauna, flora and the landscape, but the exact frontiers of the problem are difficult to define and other many areas of the legislation, as the relating ones to the health and the security in the work, the planning of the use of the floor and the protection of the cultural inheritance, have environmental implications. There are legislation examples on the environment that you/they go back at the times of the Romans and of the half age that today figures in the national laws of almost any country, although its reach and detail degree vary considerably. One constitutes from the fields legislatives of quicker growth to world level. 
An area of the environmental legislation approaches the principles according to those which who damages the environment it is subjected to the payment of compensations, as well as it has more than enough who can request a legal action before the tribunals. Although important, such principles can contribute little to impede the damages to the environment, and most of the legislation in this respect it consists, at the present time, in diverse regulation types on the part of the government. Several types of legal focus are used that include the prohibition or restriction of the use of certain substances and the determination of standards for the products. Probably, the used method in environmental regulation is the demand of licenses or other authorization forms to carry out certain activities, as the one poured of efluentes in the water or the elimination of residuals. The effective installation of the environmental laws continues being a problem in many jurisdictions, and today in day, bigger attention is paid to the use of economic mechanisms, for example special taxes, like means to reinforce or to replace more conventional systems of environmental regulation. 
In spite of the great variety of laws that you/they exist related with the conservation of the environment, in many jurisdictions a series of principles and common tendencies are arising, reinforced by the growing international cooperation arisen in the decade of 1970. The necessity to prevent the damages to the environment in origin often leaves reinforced by the requirement of the Evaluation of Environmental Impact of the new proposals and projects. The call principle of caution arose in the decade of 1980 as justification of the environmental regulation, even in case scientific doubts existed about the exact causes from the damage to the environment, and it was ratified in the Summit on the Earth taken place in 1992. Today in day, in many countries laws that grant the public the right to consent to the information related with the environment exist and to participate in the taking of decisions regarding questions that they affect this and, more and more, the constitutions contain certain principles related with the same one. The necessity to guarantee a bigger consistency among the different legislations on the environment and to achieve a more effective integration of the environmental concerns in other fields of the law, as the transport and the trade, continues being a challenge.