Places with cold climates need access to a reliable and efficient heat supply for the health of their population. But in developing countries, the majority of rural and peri-urban households do…

Yabei zhang |

Also available in Français | Español | 中文 In January, World Bank Group President Jim Yong Kim urged the audience at the World Economic Forum in Davos to look closely at a young, promising form of…

Heike Reichelt, Alexandra Klöpfer |