sea level changes

Sea level changes are the variations in the Earth's average ocean height, caused mainly by climate and geological factors. When glaciers and ice sheets melt due to warming, water adds to the oceans, raising sea levels. Conversely, during ice ages, more water is stored in ice, lowering sea levels. Other factors include the expansion of seawater as it warms and shifts in Earth's crust. These changes occur gradually over time but can also happen more suddenly due to events like earthquakes or tropical storms, impacting coastal areas worldwide.