Global warming is expected to significantly raise sea levels due to the melting of polar ice caps and glaciers, contributing to coastal flooding and habitat loss. Changes in temperature and salinity from warming oceans will disrupt global ocean circulation patterns, affecting climate systems and weather patterns worldwide. Additionally, shifts in oxygen isotopes in ocean water will provide insights into past climate changes and current warming trends. These alterations can impact marine ecosystems, including species distribution and biodiversity. Understanding these interconnected effects is crucial for predicting future environmental changes.