As the ocean warms, it expands and takes up more space. This process is called thermal expansion—warmer water expanding. That’s a major reason why the ocean is rising.
And, of course, another reason that the ocean is rising is that warmer global temperature is causing ice caps and glaciers to melt.
Rising seas affect people all around the world. We are all familiar with the images of beach homes destroyed and streets flooded near the coast. But it’s not just people who live on the coast who are affected. Because coasts are such an important resource for transportation, what affects the coasts affects us all. Let me show you an example.