Reading the climate change articles this week, I felt that the disproportionate challenges faced by the Global South – which is comprised by countries that were not the major polluters responsible for the escalation of climate change in the 20th century – were addressed only briefly. I also was surprised that none of the articles really made the case for policies of managed retreat to higher ground alongside more transformative technological solutions like sucking carbon out of the air, carbon taxes, etc.
Climate change is recognized as an urgent security problem on a global scale, but its effects will be felt most immediately and acutely by communities of the Global South. An uptick in droughts and major storm events, combined with inadequate infrastructure and high reliance on the agricultural sector have left the region particularly exposed to this threat. Major cities in this region are commonly located on coasts or major waterways and thus face the immediate impacts of rising seas. Urban centers are primary destinations for climate refugees escaping the drought, deforestation, and food insecurity increasingly faced by rural and agricultural economies – contributing to existing problems of overcrowding, slum expansion, and insufficient housing supply in cities. As the region grapples with a changing climate, the science suggests the brunt of these changes will impact the region’s most vulnerable: women and children, the poor, and those with low levels of mobility.
The urban poor are most vulnerable to rising temperatures. The poor are most likely to live in insecure structures without proper heating or cooling infrastructure and are least likely to have ready access to clean water or green space that serves to offset rising temperatures. Further, the development of informal housing in dangerous or risk-prone areas is often encouraged by regulations and zoning laws that restrict housing supply and deny poor communities land tenure. As a result, already overcrowded slums are overflowing as migrants arrive from coastal areas ravaged by climate change’s most immediate effects, or from agricultural communities where changes to weather patterns have devastated their crops and ability to make a living. As new arrivals to cities, migrants find access to affordable housing and transportation is limited, and many migrants struggle to gain employment as they lack formal education and skills translatable to the urban economy. In this way, it is easy to see how environmental degradation can lead to security threats and conflict over scarce resources – particularly among populations already suffering from various forms of deprivation.
In the face of rising sea levels, some scientists and scholars have suggested that the response should be a systematic retreat to higher ground or mass movement to climate resilient terrain. Moving inland, they argue, is not a defeatist measure; it is simply a practical one. This approach has not gained a great deal of traction in climate change policy conversations, primarily because relocation is drastic, complicated, and costly, and would mean moving local communities – often the poorest and most vulnerable – from the places they call home. Programs of this nature would require a particularly high level of buy-in from policymakers and communities, which the concept does not currently enjoy. However, proponents of retreat say these policies are framed as prohibitively difficult until they are deemed inevitable, pointing to islands of the South Pacific and Indian Ocean that have hastily adopted policies of retreat and relocation, recognizing that their environments will soon be underwater. These scholars contend that, if well-managed, retreat would be a prudent, proactive measure to head-off an inevitable reality that many communities will face down the line. Such policies are not only prudent for communities of the Global South but also low-lying and coastal communities in the United States. New York has experimented with such policies in the wake of Hurricane Sandy in parts of Long Island and Staten Island, offering to buy damaged homes for pre-storm value in exchange for owners moving to less vulnerable areas.
I put managed retreat in the category of adaptive solutions rather than the transformative solutions needed to address the problem on a global scale, but both need to be discussed side by side by policymakers.