Final answer:
Miami, Florida is approximately 2 meters above sea level; taking into account past fluctuations and future projections, Miami's low elevation makes it vulnerable to sea level rise.
Step-by-step explanation:
Miami, Florida, is situated at an elevation slightly above sea level. Although sea level has experienced major variations throughout the Earth's history, current sea levels are stable enough to assess Miami's elevation. A possible elevation for Miami could be around 2 meters or 6 feet above sea level.
This elevation allows it to be above sea level currently, but at risk for any significant rises. Historical data shows that the Earth has seen sea levels much higher and much lower in the past, highlighting the potential for future changes. Considering these fluctuations and the concern for a predicted one meter rise by 2100, Miami is in a vulnerable position given its current low elevation.