Houses under construction. © John Hogg/World Bank [[tweetable]]Affordable housing is a major challenge across West Africa, where fewer than 7 percent of households can afford to buy their own home…

Martin Spicer |

​Marine Protected Areas will be a topic for discussion at the IUCN World Parks Congress, which is opening today in Sydney.  And it should be: MPAs—which are marine spaces that restrict human…

Amanda Feuerstein |