Global Warming

Climate Change – Migrant Crisis in Bangladesh

The country, already grappling with the Rohingya crisis, now faces a devastating migration problem as hundreds of thousands face an impossible choice between battered coastlines and urban slums.

Bangladesh, a densely populated, riverine South Asian nation, has always survived its share of tropical storms, flooding, and other natural disasters. But today, climate change is accelerating old forces of destruction, creating new patterns of displacement, and fueling an explosion of rapid, chaotic urbanization

Bangladesh holds 165 million people in an area smaller than Illinois. One-third of them live along the southern coast, a lush honeycomb of island villages, farms, and fish ponds linked by protective embankments. Most of the country’s land area is no higher above sea level than New York City, and during the rainy season more than one-fifth of the country can be flooded at once.

For tens of thousands of years, people living in the vast Ganges Delta accepted a volatile, dangerous landscape of floods and tropical storms as the cost of access to rich agricultural soil and lucrative maritime trade routes.

Climate change is disrupting traditional rain patterns—droughts in some areas, unexpected deluges in others—and boosting silt-heavy runoff from glaciers in the Himalaya Mountains upstream, leading to an increase in flooding and riverbank erosion. Every year, an area larger than Manhattan washes away. Meanwhile, sea-level rise is pushing saltwater into coastal agricultural areas and promising to permanently submerge large swaths.

Over the last decade, nearly 700,000 Bangladeshis were displaced on average each year by natural disasters, according to the Internal Displacement Monitoring Centre. That number spikes in years with catastrophic cyclones,

As people flee vulnerable coastal areas, most are arriving in urban slums—particularly in Dhaka, one of the world’s fastest-growing and most densely populated megacities. The city is perceived as the country’s bastion of economic opportunity, but it is also fraught with extreme poverty, public health hazards, human trafficking, and other risks, including its own vulnerability to floods. Already, up to 400,000 low-income migrants arrive in Dhaka every year.

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