The environmental impacts of the Mexico–United States border are numerous, including the disposal of hazardous waste, increase of air pollution, threats to essential water resources, and ecosystem fragmentation. The Mexico–United States border consist of a continental boundary of 1,954 mi. This border region is composed of diverse terrains in which various species, peoples, and indigenous tribes have made their homes. Through the decades, both countries have attributed to the increase in population growth, manufacturing corporations, and fragmentation of land due to border policy changes which contribute to environmental disparities between these neighboring borders. On August 14, 1983, at La Paz, Baja California Sur, the United States and Mexico entered into the United States–Mexico Agreement on Cooperation for the Protection and Improvement of the Environment in the Border Area, known as the La Paz Agreement. The agreement aims to protect and conserve the environment along the border. The agreement sets forth the responsibilities of both parties to prevent and control air, water, and land pollution in the border area. This agreement is made in accordance to each country's laws. The agreement entails that both parties must take responsibility for their border area and have the right to raise concerns if one state's environmental hazards linger into the other. The agreement highlights that both countries have the responsibility of coordinating with one another in the creation of national programs, scientific and educational exchanges, environmental monitoring, environmental impact assessment, and periodic exchanges of information and data on pollution sources in their respective territory. The information collected is then exchanged between each country every year at an annual meeting. The host nation alternates between the two countries. The collection of data is at the expense of each country. In consensus with one another the countries can make any annex changes to the agreement.