The Earth has experienced Climate Change in the Past

This claim is true, and these changes have been associated with rising sea levels and mass extinctions. This is exactly what climatologists and other environmental scientists are warning us about. The possibility of rising sea levels poses a major threat to countries/islands close to sea level. Many of these countries lack the money, resources, and infrastructure for widespread evacuations. Coastal species would be lost as their ability to move inland and/or migrate to other regions would be hampered by the existence of humans.