Disasters Do Not Just Destroy Homes; They Also Silently Devastate Our Natural Shield — the Sundarbans

After every devastating cyclone or storm surge, the same familiar discussions dominate our attention: How many homes were destroyed? How much crop was lost? How many thousands of people were left homeless? While documenting human suffering and economic losses is undoubtedly essential, there is another question that rarely enters public consciousness: Who keeps track of the silent guardian that has long stood between us and nature's fury? Who measures the immense loss suffered by our coastal mangrove forest the Sundarbans each time a disaster strikes?

Today is the International Day for the Conservation of the Mangrove Ecosystem. On this occasion, it is time to reflect on why, alongside human Loss and Damage, we continue to overlook the irreversible losses suffered by nature itself.

Spanning approximately 6,017 square kilometers across the southwestern coast of Bangladesh, the Sundarbans is the world's largest contiguous mangrove forest. It is far more than a collection of trees or a sanctuary for wildlife; it serves as a resilient natural shield protecting the lives and livelihoods of millions of people living in the country's coastal regions. Long-term climate and environmental research has consistently shown that mangrove forests can reduce the wind speed of powerful tropical cyclones by approximately 15% to 30%. In other words, without this natural protective barrier, the destruction caused by catastrophic cyclones such as Sidr, Aila, Amphan, and Remal would have been several times more severe than what we have witnessed.

Although government agencies and humanitarian organisations immediately begin relief operations and rehabilitation efforts after major cyclones such as Sidr, Aila, Amphan, and Remal, the deep wounds inflicted upon the Sundarbans often remain hidden and largely ignored. Cyclonic storms uproot or snap thousands of mature trees per square kilometer, leaving behind widespread ecological destruction. This is followed by another major threat salinity intrusion caused by storm surges which disrupts the natural structure and chemistry of the soil. As a result, newly emerging mangrove seedlings and young plantations struggle to survive. Scientific evidence indicates that excessive salinity can reduce the natural growth rate of mangrove trees by as much as 40%. The impact extends far beyond vegetation. The Sundarbans serves as a highly sensitive breeding ground for hundreds of species of fish, crabs, migratory birds, as well as endangered wildlife including the Royal Bengal Tiger and the Irrawaddy Dolphin. During disasters, powerful tidal surges and abrupt environmental changes severely disrupt both marine and terrestrial food chains. Furthermore, damage to the mangroves' intricate aerial root system, known as pneumatophores, weakens the stability of coastal soils, accelerating coastal erosion and significantly reducing the coastline's natural ability to withstand future disasters.

This raises an important question: Why do these enormous environmental losses rarely receive adequate public attention or reach policymakers decision-making tables?

When a concrete wall collapses or a tin roof is blown away, the financial loss can be calculated immediately. However, assigning an economic value to the destruction of a complex ecosystem, the extinction of biodiversity, or the permanent loss of carbon sequestration capacity is far more difficult. Consequently, while international climate negotiations and discussions surrounding the Loss and Damage Fund primarily emphasize human and infrastructure losses, long-term ecological degradation and biodiversity loss continue to receive far less attention than they deserve.

It is time for us to recognise a difficult truth: nature, too, is being wounded every day alongside humanity. Planting a few trees or organizing annual afforestation campaigns alone is not enough. Disaster response must go beyond emergency relief and rehabilitation to include comprehensive, long-term policies and logistical frameworks for ecosystem restoration and the natural recovery of forests. The Sundarbans protects us every day by standing as our first line of defense against nature's most destructive forces. Today, we must also raise our voices and bring its silent suffering to national and international attention. Because if nature is no longer healthy and secure, humanity cannot remain safe either.

In particular, the youth of the Global South must step beyond conventional boundaries and take a leading role in addressing this crisis. As those who will bear the greatest burden of climate change, young people have both the responsibility and the opportunity to become the strongest advocates for protecting natural defenses like the Sundarbans. Safeguarding these ecosystems is not only an environmental necessity it is essential for securing the future of our communities and generations to come.

The author is a student, Department of Environmental Science And Disaster Management, Daffodil International University