Because trash disposal is such a major problem, and cases seeming to support a position that state restrictions on out-of-state waste disposal violate the commerce clause.

• 垃圾处理问题是如此重要的一个问题，并且上述案件看起来都站在同一个立场即凡是限制州外垃圾处理的州都违反了贸易条款。