BioTreasure aims to improve the livelihoods of at least 1500 rural households in Yemen through the deployment of small-scale biogas plants. The devices are constructed locally. The devices are designed to enable the rapid decomposition of organic waste, maximizing the amount of biogas produced. The project will help to solve three major problems in Yemen: (i) household organic waste, which emits significant amounts of methane gas and is a major contributor to climate change; and (ii) indoor air pollution which causes many people to die each year – in Yemen, over 3 million people still cook over open fires. Additionally, the project will (iii) help to reduce the incidence of certain diseases known to be spread or exacerbated by the dumping of organic waste, such as cholera which has affected nearly half a million Yemenis in 2017 alone.