continue to present potentially serious risks to coastal communities now and even
more so in the future.’ To what extent do you agree with this view?
Coastal communities worldwide face numerous natural threats, from
erosion to storm surges, endangering both lives and livelihoods. Whether
human interventions can effectively combat these hazards remains a
contentious issue. This essay looks at the extent to which interventions,
like intentional mangroves and hard engineering strategies, can slow
natural processes and offers an argument that no single strategy can
guarantee long-term resilience for coastal communities.
Mangroves have been celebrated for their ability to shield coastal areas
from hazards, with their intricate root systems acting as barriers against
erosion and storm surges. For instance, in Odisha, India, the Bhitarkanika
Mangrove Sanctuary spans over 650 square kilometres and has been
important in lessening the impact of cyclones, safeguarding lives and
property. However, despite their benefits, mangroves are vulnerable to
degradation from human activities. Rapid urbanisation and deforestation
threaten their resilience, increasing coastal vulnerabilities. Therefore,
while mangroves offer significant advantages, their long-term
effectiveness relies on sustainable management practices and broader
ecosystem conservation efforts.
In the UK, various hard engineering strategies have been deployed to
mitigate coastal risks, including seawalls and groynes. These structures
aim to alter the coastal environment physically, thereby reducing erosion
and flooding. For example, the Thames Barrier in London has protected
the city from storm surges, averting potential damages worth billions of
pounds. Nevertheless, hard engineering solutions come at a cost.
Seawalls can disrupt natural sediment transport, leading to beach
erosion elsewhere, and alter coastal ecosystems. Moreover, escalating
climate change impacts, such as sea-level rise, pose challenges to the
long-term effectiveness of these structures. Consequently, while hard
engineering strategies provide immediate protection, their sustainability
and adaptability to future risks remain uncertain.
Despite the implementation of diverse strategies, the inherent dynamic
nature of coastal environments poses significant challenges to long-term
risk reduction. Natural processes like sea-level rise and coastal erosion
operate on scales beyond human intervention, rendering any single
strategy inadequate in isolation. Additionally, the interconnectedness of
coastal systems requires approaches that consider ecological, social, and
economic dimensions, like ICZMs. For instance, while mangroves and
seawalls offer localised protection, they may displace risks elsewhere or
disrupt natural coastal processes, leading to unintended consequences.
Hence, achieving optimum coastal protection needs solutions that link
human and physical processes together.
In conclusion, while interventions such as mangroves and hard
My score strategies can mitigate immediateActual
engineering score:
risks to coastal
communities, their long-term effectiveness hinges on adaptive and
Examiner feedback:
holistic approaches. The complexity of coastal systems highlights the
need for solutions that balance environmental sustainability with societal
needs. Therefore, while human interventions can provide a buffer
against natural hazards, acknowledging the limitations of intervention
and embracing adaptive governance is essential for fostering resilience
in coastal communities.