Mexico

Mexico meets the Pacific Ocean in its west, and the Caribbean Sea of the Atlantic Ocean in the east. Its inland terrain features mountains, plateaus, and desert; as well as the mouths of the Colorado and Rio Grande Rivers. Most of the country is used for human activities, in its majority by rangeland. Mexico has high biodiversity rarity of terrestrial land vertebrates at a global scale. When analysed as single taxons, the rarity of amphibians, birds, mammals and reptiles is also high. The rarity of marine fish and mammals is also high. Challenges to biodiversity include hazardous waste disposal; urban development; scarce freshwater resources; water pollution; deforestation; erosion; desertification; and air pollution in urban centers.