Moshni is typical of many small villages in the vast coastal delta region of Bangladesh, where the population depends largely on agriculture and aquaculture for food, nutrition and income.
The people of this coastal region, and the aquatic agricultural systems their livelihoods depend on, are particularly vulnerable to the impacts of climate change. These include increased frequency of flooding due to sea-level rise, elevated salinity in agricultural areas, greater monsoon precipitation, and increased vulnerability to cyclone and storm surges, drought.
Some of the threats posed by climate change can appear rather esoteric or abstract. One of these is ocean acidification - it is not immediately obvious why we should care. A recent paper by Sara Cooley and colleagues give a good example of why the threat of changing ocean chemistry matters.
Malawi is one of the world's least-developed countries. Its economy is heavily based in agriculture, with a largely rural population. Many of its more than 15 million people are in need of food assistance.
The food security situation in Malawi is precarious as the country is prone to natural disasters, from drought to heavy rainfalls, putting it in constant need of thousands of tons of food aid every year.