The mammoth structures proposed by scientists would enclose the North Sea to protect tens of millions of Europeans from rising sea levels due to climate change. The urgency of the crisis is reflected in the scale of the project, which could cost $250 billion to $550 billion and be covered by Northern European countries. Some experts are skeptical of damming the North Sea, suggesting that building defenses along the coastline may be a better solution. The scientists behind the proposal see it as a warning and hope it serves as a wake-up call for global leaders to address climate change. The extreme solution of damming the North Sea may not be necessary if CO2 emissions are reduced to curb global warming. If carbon pollution continues, sea levels could rise over 40 inches by 2100, displacing millions of people. Even now, coastal cities like San Francisco and Manila are experiencing the impacts of rising sea levels. A proposal to construct two massive barriers, connecting Norway to Scotland and France to England, is being considered as a response to the urgent climate crisis. These structures would enclose the North Sea, protecting millions of Europeans from the threat of flooding. According to Climate Central, by 2050, around 150 million people in coastal cities could be at risk of being submerged. The proposed dams would be larger than any existing sea barriers and would require a significant amount of resources to build. The ecological and economic consequences of such a project would be substantial, but as sea levels continue to rise, drastic measures may become necessary. However, he emphasized that addressing the possibility of a sea level rise of multiple meters would not have easy solutions.