A recent United Nations report warns that by 2050, 5% of Rio de Janeiro and Santos could be submerged due to significant threats from flooding.
This alarming situation is due to the rising sea levels caused by climate change. The report focuses on these Brazilian cities, known for tourism and a major port.
The United Nations Development Programme (UNDP) and the Climate Impact Lab collaborated on this report.
They predict a dramatic increase in coastal flooding this century. Over 70 million people in expanding flood zones are at risk.
This forecast was released ahead of the critical COP28 conference. The conference, scheduled in Dubai, United Arab Emirates, will address climate change issues globally.
Specific projections for Rio de Janeiro are concerning. The city might see a sea-level rise of 20.93 centimeters by the mid-century and 48.86 centimeters by 2100.
Similarly, Santos, Latin America’s largest port in São Paulo state, faces a potential rise of 24.64 centimeters in 50 years and 55.84 centimeters by the century’s end.
These figures illustrate the urgent need for action to protect these coastal areas.
The report also points out that Latin America, the Caribbean, the Pacific, and Small Island Developing States are most vulnerable.
They face severe land and infrastructure losses due to ongoing flooding. This risk poses a direct threat to the economic and social fabric of these regions.
By 2050, the situation could worsen, with many densely populated coastal cities facing increased flooding risks.
By 2050, the situation could worsen
This threat could reverse the progress in human development in coastal communities around the world.
Pedro Conceição, from the UNDP, emphasizes the broader implications. He mentions potential mass displacements and disruptions in major economic centers.
These changes could lead to global instability and heightened competition for scarce resources.
This research underlines the urgency for immediate action.
It serves as a critical reminder to the decision-makers attending COP28 to address these pressing climate challenges actively.