A quarter of Bangladesh under water, NASA photos reveal

The flooding this year could be the worst in a decade and the longest-lasting since 1988

At the receiving end

Bangladesh jittery over India's river linking scheme

Sedimental attraction

A drowning delta can be rescued by changing the nature of its sediments, new theory claims

Flooding out arsenic

The monsoons help decontaminate paddy soils

Cow dung smoke could cause arsenic poisoning