Bangladesh is home to 147 million people and is one of the most densely populated countries in the world. More than 80 percent of the populations live on less than a dollar a day.

Bangladesh is extremely vulnerable to climate change due to its low-lying position on the Bay of Bengal. Already, climate change is causing a host of far-reaching problems in the natural, social and economic systems of the country.

'Climate refugees' are people who are displaced because of ecological disaster. In Bangladesh's case, annual flooding is the cause of millions of people who are forced to leave the country side to find temporary shelter, food and water. Scientists say this years flooding is worst they have seen since 1998 and the number of water borne disease has tripled.

The series of photographs that make up “Little Voice, Dhaka Bangladesh” were taken in the mega city of Dhaka, a city of 10 million and rising. The crumbling city doesn't have the infrastructure to support the millions of refugees continuously pouring into it. These images are of the refugees and the people that cling to the fringes of society with strength and resilience.

Lisa Wiltse lives and works in Sydney. She is a photojournalist for the Sydney Morning Herald specialising in humanitarian issues.

Wiltse has won several awards including first prize in PX3 Prix de la Photographie, Paris, Oxfam Humanitarian award The Gordon Parks International contest and was finalist in the Leica/CCP Award for Documentary Photography. Wiltse has exhibited in Sydney, and in Texas, USA.

Most recently, Lisa Wiltse has been nominated as a finalist in the 2007 Nikon-Walkley Awards for Photojournalism for this particular series on Bangladesh.