Rising Seas are not on everyone's minds. But by 2020, 133 million Americans will be living in a county that borders a coast. Sea level is predicted to rise from five feet before the end of this century, affecting communities, transforming our coastal landscapes and changing the way many of us live.
A gradually warming climate during one of Earth's interglacial periods normally takes thousands of years—the last ice age ended 20,000 years ago when human population could have been as few as two million people worldwide. Today's 7 billion people are witness to changes in sea levels happening in ten years that normally took centuries.
Will we engineer our way around an advancing ocean? Or do we move our cities inland?