Global warming is no longer a distant concern but has become a reality that already affects our daily lives. More intense, more frequent heat waves and extreme weather events are clear signs that climate change is transforming the planet. But what do these changes mean for the future of our cities? Global warming refers to the increase in the planet’s average temperature, caused mainly by the accumulation of greenhouse gases in the atmosphere, such as carbon dioxide (CO₂) and methane. These gases form a kind of “blanket” that retains heat, altering the global climate and causing serious impacts. This phenomenon causes melting ice, which leads to an increase in the average sea water level, which places these 5 Algarve cities among those most at risk of disappearing.
Among the health effects, the increase in allergic, infectious and cardiorespiratory diseases stands out. Furthermore, as temperatures warm, tropical diseases such as dengue fever and malaria could spread to new regions, including countries where they were not previously common. Portugal, with an extensive Atlantic coastline, is among the countries most vulnerable to rising sea levels and the impacts of coastal storms. Studies indicate the risk of flooding and erosion in several coastal cities and towns in the country.
A scientific journal report Nature Communications warns that millions of people around the world live in coastal areas that could be submerged by 2050. In Portugal, sea levels could rise by up to 7 meters in the coming decades, putting several locations in danger. Tools such as interactive maps of the Climate Central allow us to visualize how these changes could affect the Portuguese coast, with scenarios that point to the disappearance of some urban areas.
Although they may seem alarmist, these projections are based on scientific data. It is a reality that requires quick and effective responses and Portugal, in particular some Algarve cities, face significant risks. Rising sea levels, combined with increasingly intense sea levels, could affect not only the economy, but also the quality of life of populations.
If nothing is done, global warming could lead to the disappearance of some of Portugal’s most emblematic cities, namely the Algarve. Coastal communities face growing challenges, and it is everyone’s responsibility — governments, businesses and citizens — to contribute to building a sustainable future. According to , the Algarve cities that will be the first to disappear are Vila Real de Santo António, Faro, Olhão, Portimão and Lagos.
To combat the effects of global warmingit is essential to adopt measures that protect coastal areas. In Portugal, the construction of maritime barriers, the renaturalization of coastal areas and the relocation of populations at risk are some of the possible solutions. Furthermore, it is essential to reduce carbon emissions and increase energy efficiency at a global level. These actions are crucial to combat the causes of climate change and avoid even more serious consequences.
Our daily choices, combined with specific public policies, can make a difference in protecting the most vulnerable Portuguese cities and towns. It is essential to act now to ensure these areas are preserved for generations to come.
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