When Were Sea Levels Highest?

By Meg Duff.

Sea levels are rising as climate change rapidly melts glaciers and ice sheets and the water within the oceans expands in a warming world. But have sea levels ever been higher than they are today? And when were they the highest? In short, sea levels have easily been higher than they are today. But it’s still unclear exactly when they were at their highest, although scientists have a few ideas.

read more at livescience.com.