Sea Levels Are Rising Faster Than Scientists Previously Estimated

The UN's Intergovernmental Panel on Climate Change released a report predicting significant ocean rise and loss of coastal wetlands by 2100 if current practices continue. The report, contributed to by over 100 scientists from 36 countries, emphasizes the importance of meeting the 2015 Paris Agreement goals to preserve ecosystems. Despite 186 countries agreeing to the treaty, the US plans to exit in 2020.

What potential impact on coastal wetlands is mentioned in the report?

What could happen to some coastal cities and island nations every hundred years according to the report?