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Earth is getting hotter. As a result, sea level is going up. Sea Change explains the research of a team of scientists who hope to improve predictions of future sea level by learning how high the sea rose in the past.

The future height of the sea concerns people all around the world. Billions of people, about 40 percent of the population of the world and 55 percent of the population of the US, live near a coast. The sea laps against the land of eight of the world’s top ten cities. Higher water will alter the lives of many of these people in coming decades. Explore Sea Change to learn what scientists know now and how they’re learning more.


Spend less than a minute to learn why Columbia University geologist Maureen Raymo worries about global warming.