Few countries in the world are considered more vulnerable to the impact of rising sea levels and climate change than Bangladesh.

A nation of 175 million people squeezed into a landmass the size of Iowa.

In partnership with the Pulitzer Center, Fred de Sam Lazaro traveled to Bangladesh to look at efforts to build resilience in the face of escalating

consequences.

It is the most crowded space in the most crowded city on earth by some rankings.

Tens of thousands who live in this slum settlement of Coral are so-called climate refugees,

whose previous homes were on land that no longer exists.

Our house was taken away by the river.

65-year-old Jahanara, she uses only one name, moved here some two decades ago.

Her family's home was lost, like tens of thousands of others over the years, to erosion

or were on land swallowed by a rising sea.

Jahanara scrapes by, earning two to three dollars a day, cleaning houses and selling scrap.

I have lived a very difficult life.

I have worked hard. I still work hard.

With three major rivers and hundreds of tributaries, most swollen by rising seas and melting Himalayan glaciers,

no part of this low-lying country, coastal or inland, is spared.

I'm standing on an embankment along the Padma River.

It feels nice and solid, but until about four days ago,

it stretched out further for another quarter mile or so.

All of a sudden, it simply sank into the river,

taking with it several homes and a few shops.

And the people here say it all happened in about 15 minutes.

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