June 2nd, 2021
Sea level rise is defined as a climatically induced change of sea levels that can lead to flooding in high-risk areas. This change is caused by several different factors. The two main factors that will be highlighted in this article are climate change and land proximity to a body of water. Climate change causes an increase in sea level due to the retention of heat by carbon dioxide in the Earth’s atmosphere. The changes that happened during the 20th century led to a sea-level increase of 0.17±0.05m, according to observations made by the Intergovernmental Panel on Climate Change . If this continues by 2100, the sea level is estimated to rise between 2 to 3.4 meters. These effects can already be seen, from changes in polar regions to the increase in floods. The aspect of floods is something that is very concerning for islands and peninsulas since these geographical regions do not have much of a “buffer” against any drastic flooding or change in land borders as a result of flooding.
This issue concerns Greece and California, two places distant in location but similar in climate. However, there are several main issues that affect both of these diverse regions. The first issue is that of population displacement. This is related to the coastal development and landscape of those regions. In numerous parts of Greece, communities have found ways to thrive off the coastal regions, including tourism. The beaches that we value as part of Greece’s natural beauty are at risk of being lost, leading to a socioeconomic deficit, displacement of families and businesses who have relied on the economic benefits of tourism, and the depletion of wildlife. However, this issue can lead to something with more sinister impacts for California and Greece is gentrification. Gentrification is the systematic removal of a certain population from an area due to economic and/or climate change. Historic communities are facing removal and displacement because of the respective value of land based on its geographical position. Families are fleeing these neighborhoods to move to areas of higher elevation and less flood risk.  Communities that have been established within a geographical area and that have brought cultural diversity, tourism, and economic attention, as well as, are facing separation. Therefore, it is in turn, much needed that we ensure that we are preserving these high-risk areas via active intervention with both policy and infrastructure change.
Due to these aforementioned disadvantages, sea-level rise is also a large risk in property investments. In the United States, there is a specific way to prevent flood-related disasters from being unrecoverable. This is due to the national program called the National Flood Insurance Program. This program was created in 1968 by Congress to help with the cost of damage created by floods.  However, this process still has systematic flaws, since the claims process and the process for applying for this type of insurance are time-consuming and inefficient. In addition, flood insurance is not part of a default homeowners policy, meaning that many people have to go out of their way to apply for flood insurance. Furthermore, some homes are not required to purchase flood insurance since they were built before it was mandatory to do so. However, this age and lack of floodproofing design makes them more vulnerable. The main issue with this federally implemented flood insurance is that it formulates itself as separate from all other buildings and prevents the development of personal flood insurance plans. Instead, the U.S Government should focus on creating a program that is integrated into normal home insurance policies. This type of insurance is something that has prevented the development of personal flood insurance plans in the United States. In Europe, particularly Greece, a federal flood insurance program does not exist. Instead, most flood insurance (<=50%) exists under the private market, meaning that more development based on local resources and regulations can occur.  Therefore, Greece is different from California in this aspect in the sense that poorer flood insurance coverage is offered in California and in the United States in general.
Based on the evidence gathered throughout these research studies and observation of these climate-related issues, there are several methods and measures that can be taken to aid California and Greece. Three strategies that are outlined within the article “A Guide to Sea Level Rise and Housing Adaptation in California” are Protect, Accommodate, and Retreat, respectfully.  Protecting an area is the first step to preventing devastation due to Sea Level rise. We can change the infrastructure surrounding these areas with structures called seawalls, which can redirect and prevent floodwaters from causing damage to these regions. Secondly, the next technique that can be used is to accommodate. This means that cities and other geographical regions can change and accommodate their land use based on the patterns of sea-level rise and flooding. There are numerous techniques currently implemented in Europe for these issues, such as the phenomenon of “Living with Rivers”. This design principle incorporates rising sea levels or changes in bodies of water to existing infrastructure, rather than fighting against such changes . I feel that this is something that can be incorporated in both the cases of California and Greece, along with better policies to protect infrastructure and homes that are in a preexisting area. Finally, the third strategy for rising sea levels is to retreat. This often comes in the form of managed retreat, which is actively moving at-risk communities or infrastructure away form the rising shoreline. While this strategy is used as a last resort, it still requires careful calculation and planning to ensure that effective rebuilding of these cities and towns can take place afterward on this new land. However, one con to this approach is the displacement of native communities and infrastructure.
In conclusion, sea level rise is something that can affect multiple facets of a community. Not only does this affect the socio-economic landscape of a region, but the environmental cost at stake amplifies this prominent issue. Through the use of modeling and predictive technology, we are able to determine an effective solution for a given geographic region. Coastal land use may differ slightly based on geographic region, but these principles can still be applied to both California and Greece. Firstly, what needs to be addressed for any of these regions is that of an effective policy concerning flood insurance and planning. Without proper insurance for our pre-existing buildings and structures, there is no way that we can properly address and take care of what is already constructed. Therefore, we need to revise Flood Insurance Policies to be more encompassing of older buildings without a federal program. We also need to place emphasis on different solutions such as Protection and Accommodation. These solutions can revise existing infrastructure without separating communities, unlike retreat, which is something that we should avoid and use only as a last resort.
 Klaoudatos DS, Kokkali A, Conides A (2015). Estimates of the Economic Impacts of Sea Level Rise on Paros and Naxos Islands (Cyclades Archipelago Greece). J Aquac Mar Biol 2(2): 00020. DOI: 10.15406/jamb.2015.02.00020
 WPBT2. (2020, January 6). Is Climate Gentrification Happening in Miami? YouTube. https://www.youtube.com/watch?v=sa55kMXxXCQ.
 CNBC. (2020, November 18). Why Flood Insurance Is Failing The U.S. YouTube. https://www.youtube.com/watch?v=hGzXXUNzf3o.
 Bouwer, Laurens & Huitema, Dave. (2007). Adaptive flood management: The role of insurance and compensation in Europe. 24-26. ResearchGate. https://www.researchgate.net/figure/Overview-of-national-flood-insurance-and-compensation-systems-in-Europe-considered-in_fig1_228346355
 Gendler, I. (2020, September 15). A Guide to Sea Level Rise and Housing Adaptation in California. Abundant Housing LA. https://abundanthousingla.org/a-guide-to-sea-level-rise-and-housing-adaptation-in-california/.
 Görlach, B. (n.d.). Economic Evaluation of Flood Management Measures. Ecologic Institute. https://www.ecologic.eu/1371.
 Press, T. A. (2020, September 19). Greek flooding leaves 2 dead, 1 missing; 600 others rescued. The Ledger. https://www.theledger.com/story/news/2020/09/19/greek-flooding-leaves-2-dead-1-missing-600-others-rescued/5840184002/.