给出一篇文章，在其中标记出所有的逗号。


这是一篇文章的一部分。
Most human settlements are now located along coasts, where they are at risk of sea-level rise and more frequent and severe storms. In the US alone, almost 40 percent of the population lives in coastal areas, at a higher risk of property damage, flooding, and displacement caused by climate change.
Most human settlements are now located along coasts, where they are at risk of sea-level rise and more frequent and severe storms. In the US alone, almost 40 percent of the population lives in coastal areas, at a higher risk of property damage, flooding, and displacement caused by climate change. 

该文章中标记的逗号为： 

1. "Most human settlements are now located along coasts, where they are at risk of sea-level rise and more frequent and severe storms."
2. "In the US alone, almost 40 percent of the population lives in coastal areas, at a higher risk of property damage, flooding, and displacement caused by climate change."