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When sea levels rise, it means that the average height of the world's oceans and seas increases over time. This occurs primarily due to the melting of glaciers and ice sheets, as well as the thermal expansion of seawater as it warms. The primary cause of sea level rise in recent decades is the increase in greenhouse gas emissions, resulting in global warming and subsequently leading to the melting of ice.Sea level rise can have various impacts on both humans and ecosystems. It can lead to coastal erosion, flooding, and the loss of land and property. Low-lying coastal areas are particularly vulnerable to sea level rise. In addition to the direct impacts on human settlements, sea level rise can also affect ecosystems, including coastal wetlands, coral reefs, and coastal habitats. These habitats provide crucial support for various plant and animal species, and their destruction can lead to a loss of biodiversity.The effects of sea level rise are not limited to coastal areas alone. The rise in sea levels can also impact inland areas through saltwater intrusion into groundwater, which can contaminate drinking water supplies and damage agricultural lands.Mitigating sea level rise requires addressing the root causes of global warming, such as reducing greenhouse gas emissions. Additionally, adaptation measures like building coastal defenses, implementing land-use planning, and protecting natural buffers can help protect vulnerable coastal areas from the impacts of rising sea levels.