The treatment and disposal of trash and hazardous wastes is an important environmental issue. If uncontrolled, waste can release dangerous substances into the environment. Waste may be disposed in several ways, including placing trash in landfills or incinerating it. These methods can produce energy, but they can also release toxins and damage the viability of the area. Recycling is a smart method of using waste; its benefits include saved energy; reduced emissions, pollution, and landfill use; and conservation of resources, all while creating sustainable products for human use. Reusing materials reduces waste as well. Meanwhile, discarded electronic devices and supplies and nuclear waste are especially problematic in waste management because they are toxic. The management of e-waste is a growing problem as electronic devices continue to increase in popularity and affordability, including in developing nations where e-waste management is less regulated.