Q&A Bioenergy in Africa and Latin America Sustainable production of biofuels in the developing world requires integrated policies. Agriculture Investment can boost Africa’s agriculture Photo essay Garbage recycling in Egypt Health Medical marijuana legislation in South America Approval to use and sell cannabis in three countries is backed by scientific evidence, but disagreements persist. News: 26/05/17 Emergency mapping app finds vulnerable faster People marooned in remote areas during an emergency are being found more easily thanks to a mapping and … Aid Data Communication ICTs Innovation Feature: 24/05/17 Q&A: Boosting bioenergy in Africa and Latin America Jump-starting biofuel production in the developing world requires integrated policies, says Glaucia Mendes Souza. Energy Environment Biofuels Opinion: 23/05/17 How S&T and finance together boost Africa’s agriculture Private sector investments need to build on a foundation of science and innovation, writes Paul Boateng. Agriculture Farming Food security Innovation R&D Multimedia: 22/05/17 Garbage recycling in Egypt: Trading health for livelihood Cairo’s garbage collectors, integral to the city’s waste management, object to scheme that threatens their livelihoods. Pollution Cities Environment Governance Health Water and power: Mega-dams, mega-damage? From the Amazon to the Mekong, hydropower projects risk impacts on people and environment for low-carbon energy. Leave no child behind: Moving the agenda forward Progress has been made protecting children around the world, but how can we continue this trend, as well as assess children under the radar? How to advance your career in science How do you get on the right path in your scientific career? Here we’ve distilled advice and tips from researchers. Bhutan’s quest for alternative energy Shrinking glaciers and a changing economy are forcing the Bhutanese to question their dependence on hydropower. Mapping trachoma to eliminate blindness Explore how a huge project targeting this infectious eye condition has set the standard for surveying disease.