In the United States, whether strict rules and regulations shound be formulated for the problem of coal burning, different views have been put forward. The backgroung is that burning coal in power plants produces a waste product called coal ash, a material that contains small amounts of potentially harmful chemicals. Environmentalists in the United States are concerned about the damage such harmful chemicals may be doing to the environment and suggest that the United States government should create new, much stricter regulations for handling and storing coal ash.However, representatives of power companies take the opposite view.Their reasons are as follows.First, power company representatives point out that effective environmental regulations already exist.Second, some analysts predict that creating very strict rules for storing and handling coal ash might discourage the recycling of coal ash into other products.Finally, strict new regulations would result in a significant increase in disposal and handling costs for the power companies.