Eyes on the Tide

The Pacific Ocean covers almost a third of the Earth. Scattered around its rim are many groups of islands. In recent years, the people of these islands have noticed tides getting higher and storms getting worse. And they wonder—is their world about to change?

Rising Tides

As the climate warms, the huge ice sheets at the North and South Poles are melting, releasing water into the oceans. That makes the ocean higher, like when you add water to a bath. Warmer water also takes up more room