Waterless toilets, also known as dry toilets, are sanitation systems that do not require water for flushing. Instead, they use various methods to manage human waste, such as composting or incineration. These toilets are particularly useful in areas with limited water supply or where traditional plumbing is impractical. One common type of waterless toilet is the composting toilet, which breaks down waste through natural processes, turning it into compost over time. Another option is the incinerating toilet, which burns waste to reduce it to ash. Both types aim to provide a sustainable solution for sanitation while conserving water.