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Can We Save Low-lying Island Nations From Rising Seas?

Many island states could be wiped out by rising sea levels. Reclaiming land has long been frowned upon by environmentalists, but in the face of climate change, it may be these islands’ only hope.

Written by Vincent Mack, Christopher H. Lim Published on Read time Approx. 4 minutes
The rising sea levels pushing into the waters of Senegal's Saloum Delta already threaten to carve the rest of this gray cement home from its foundation on low-lying Diamniadio island.AP/Jane Hahn

Though climate change has been an internationally recognized challenge since the United Nations Framework Convention on Climate Change in 1992, efforts toward reducing carbon emissions by governments remain uneven and insufficient.

Notable effects of global warming include the melting of polar ice (as demonstrated by the giant iceberg that recently broke away from Antarctica) and rising sea levels, as well as dramatic and irregular weather, which together can put our fragile environment under stress.

Even so, as of today, out of the 195 states that signed the 2015 Paris climate agreement, only 152 have ratified it. While some countries evidently do not fully appreciate the sense of urgency, island nations have no such luxury.

First Casualties of Global Warming

Conceptually, state sovereignty is demarcated by physical territory. For island states, that means their shoreline.

As sea levels rise, many island states could soon be swamped and their residents forced to flee, rendering their societies extinct.

The latest report on rising sea levels released in January 2017 by the National Oceanic and Atmospheric Administration (NOAA), predicts global sea levels rising by 1-8ft (0.3-2.5m) by the year 2100. This projection is an increase from the group’s December 2012 estimate of a maximum rise of 6.6ft (2m).

Driven by the urgency to deal with the effects of rising sea levels, an Alliance of Small Island States (AOSIS) was established in 1990. Today, AOSIS consists of 19 countries in the Atlantic Ocean, 16 in the Pacific, four in the Indian Ocean and five observers.

The Polynesian island of Tuvalu is one of the countries. There, freshwater supply from reservoirs is already gradually being replaced by seawater. In parallel, it is also being contaminated by sewage. Agricultural production, Tuvalu’s economic lifeline, will likely be affected by the diminishing supply of potable water.

Funafuti atoll is the capital of Tuvalu, a group of atolls situated north of Fiji and northwest of Samoa, in the South Pacific ocean. The atolls are suffering a severe drought and water shortage, coupled with contaminated groundwater due to rising sea levels. (AP/Alastair Grant)

Any Viable Options?

Nature does not negotiate with any country, regardless of its wealth or military power. And unfortunately, it is small island states such as Tuvalu that find themselves in the front line of climate change.

They are starting to experience a variety of severe, climate-change induced effects, including coastal erosion, loss of life, damaged infrastructure and the displacement of fish stocks.

Given that the territorial integrity of many island nations is so severely threatened by rising sea levels, should we expect all 39 AOSIS members to begin arrangements for the large-scale exodus and resettlement of their populations?

This would be a tall order, considering the current anti-globalization sentiment. Many non-AOSIS countries are unlikely to accept large-scale immigration from these island nations within a short timeframe, though some political leaders may be willing to offer sanctuary on humanitarian grounds.

In the meantime, as the international community continues to negotiate global carbon-reduction goals as if they were trade barriers, more concrete and proactive remedial steps could be taken to preserve small island states from imminent disappearance.

Taking a page from China’s speedy reclamation experience in the South China Sea, one solution may be to build, expanding these small nations into sizable land masses.

Environmentalists and NGOs may cringe at the thought of the large-scale reclamation of island states in the Pacific, Atlantic or Indian oceans, and, like any massive engineering project, this approach raises valid environmental concerns.

Jakarta’s new concrete giant sea wall built on the old wall. Jakarta is sinking by several centimeters a year, faster than the sea is rising. (Anton Raharjo/Pacific Press, Sipa USA via AP)

But in lieu of an immediate global consensus on carbon neutrality, this is a solution that international financial institutions and organisations, such as the Asian Infrastructure Investment Bank (AIIB)the Asian Development Bank (ADB) and the United Nations, could consider: by setting up either single-handedly or jointly a fund to rebuild and re-inhabit small island states.

Based on the Dutch model, this fund could be used for land reclamation, creating new and expanded territories for these island states and erecting a storm surge barrier comparable to the Netherlands’ Maeslantkering.

Such a grand undertaking would be an engineering marvel – with a hefty price tag to match.

If individual small island states could negotiate with like-minded countries such as China, Japan and the Netherlands, they might start a strategic joint-venture partnership. To be sure, such relationships – with their great power asymmetries – must be delicately managed and based solely on environmental cooperation. No politics can be involved.

If better-off international partners are willing and able to exercise this extra sensitivity and, rather than take advantage of the smaller island states, grant them preferential treatment instead, it could forge a new path for global cooperation around shared climate challenges.

Small island states could grant tenure to partner countries to safeguard and invest in an island or group of islands for a 99-year period, say. Together, they would co-develop marine-based industries such as sustainable aquaculture and renewable energy sources, such as floating solar farms and tidal-powered generators.

Reclaimed land could also be developed for sustainable agriculture, and the marine ecosystem at these reclaimed islands could offer a large untapped resource for drug research and development.

Finally, in this era of responsible travel, it is easy to imagine that newly reclaimed islands could become tourist destinations, providing additional income for these fragile nations as they face an ever more difficult future.

This piece originally appeared on The Conversation. Read the original article.

The views expressed in this article belong to the authors and do not necessarily reflect the editorial policy of Oceans Deeply.

The Conversation

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