Hong Kong is on a path to be completely reshaped by sea level rise. This video shows what would happen to the city’s Victoria Harbor waterfront if the world’s emissions patterns are allowed to continue.

Climate Central’s analysis shows that China is where sea level rise could have the greatest impact. At 5.4 degrees Fahrenheit of warming, the report shows that 43 million people in China would be imperiled by 2100. That includes 14 million in Hong Kong alone.

Another 200 million live on land that will be at risk in the centuries to come. Yet the authors also found that if the world does make rapid cuts to greenhouse gas pollution, China could see a major reduction in risk. Under the 2.7-degree-Fahrenheit scenario, some 50 million people would be spared when looking at the multi-century timescale.