Climate change leads to rising sea levels primarily through two mechanisms: **thermal expansion** and **melting ice**. As global temperatures rise, **oceans** expand due to the increased heat, causing sea levels to rise. Simultaneously, the melting of **glaciers** and **polar ice caps**, and the **ice sheets** of Greenland and Antarctica, contribute additional water to the oceans. Rising sea levels result in **coastal erosion**, increased **flooding**, and the **submersion** of low-lying areas, impacting ecosystems and human settlements. This phenomenon threatens **biodiversity**, disrupts **coastal communities**, and increases the risk of **natural disasters**, necessitating urgent mitigation and adaptation strategies to address its impacts.