Environmental damage a lot of the time is not a one can be found, but over a period of time, therefore, has a hidden, often involved in a number of other factors in the environment eroded and environmental hazards, therefore, in the same behavior against the relationship between the infringement results identified, there are some difficulties when the damage to the environment has a number of, and against reason is different this time is difficult to judge which side is causing environmental damage, what the extent of damage. In addition, subject to objective factors and limitations of many environmental damage within a short time is difficult to determine the Rules of Civil Procedure requires the application of the damages must be able to determine, potentially increasing the difficulty of the environmental public interest litigation.