sea level changes
Unlike temperature, sea levels do not naturally fluctuate a lot, which indicates that the global rise in sea level throughout the twentieth century is caused by climate change. On average, sea level has increased 0.06 inches a year from 1880 to 2012, but this has increased to 0.11 inches a year since 1993. The relative sea level has also risen along much of the American coastline since 1960, increasing an average of 8 inches, which has caused millions upon millions of dollars of property damage to shoreside estates. For example, rising relative sea levels on the South Pacific island of Kiribati have destroyed much of the coastline through sea erosion, as can be seen in the picture below ("Sea Level," 2014).