Rising sea levels due to climate change may threaten tens of millions more people than previously thought, according to a new report. Writing in the journal Nature, researchers say that 90 percent of ...

Sea levels are rising faster than in 4,000 years, putting some of the world's largest cities at growing risk of flooding and sinking.

Add Yahoo as a preferred source to see more of our stories on Google. Sea-level rise changes coastlines, putting homes at risk, as Summer Haven, Fla., has seen. Aerial Views/E+/Getty Images When polar ...

I see the next ten years as a stress test for coastal civilization: enough time for sea level rise to become impossible to ignore, but not enough for slow political systems to fully catch up. The ...