Rising sea levels are on track to affect about three times more people by 2050 than originally thought. New research suggests that 300 million homes will be affected by coastal flooding in the next 30 years. And that number could rise to 630 million by the year 2100 if carbon emissions don't decrease. New estimates mean rising seas will cause more damage, cost more money and impact more communities than ever before. The new projections suggest that much of Mumbai, India’s financial capital and one of the largest cities in the world, is at risk of being wiped out. Built on what was once a series of islands, the city’s historic downtown core is particularly vulnerable.

Rising sea levels are on track to affect about three times more people by 2050 than originally thought. New research suggests that 300 million homes will be affected by coastal flooding in the next 30 years. And that number could rise to 630 million by the year 2100 if carbon emissions don't decrease. New estimates mean rising seas will cause more damage, cost more money and impact more communities than ever before. The new projections suggest that much of Mumbai, India’s financial capital and one of the largest cities in the world, is at risk of being wiped out. Built on what was once a series of islands, the city’s historic downtown core is particularly vulnerable.