New research published found that by 2050 over 300 million people will be vulnerable to rising seas due to climate change. This is three times the amount of people originally estimated.

By 2050, 300 million homes will be affected. By 2100, 630 million homes could be in danger if we don’t cut our carbon emissions. This means 300 million homes will experience annual flooding by 2050, higher tides could affect 150 million homes permanently.

A new study published in Nature Communications found that during the 21st century, sea levels could rise .5 meters. This estimate is based on immediate cuts to carbon emissions. Without cuts to emissions, sea level rise could exceed 2 meters.

Data models collecting using satellite data show that the majority of the affected population live in Asia. Bangladesh, India, Indonesia, Vietnam, Thailand and China will see 237 million people affected by flooding.

These new estimates show that sea level rise will affect millions of more people and areas than previously thought. Changes to estimates came from updated satellite data. Coastal regions that were thought to be at certain sea levels were actually much lower than originally estimated. Therefore, these areas will be affected by sea level rise.

Lead author Scott Kulp said of the study, “These assessments show the potential of climate changeto reshape cities, economies, coastlines, and entire global regions within our lifetimes. As the tideline rises higher than the ground people call home, nations will increasingly confront questions about whether, how much, and how long coastal defenses can protect them.”

Sea level rise is a byproduct of global warming. When Arctic and Antarctic ice melt from warmer temperatures, sea levels rise. We can prevent sea level rise by reducing our carbon emissions and taking other steps against climate change. Read additional news about sea level rise in One Green Planet, including how climate change has caused flooding in Vietnam.

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