Opinion What African agriculture needs Former Nigerian President Olusegun Obasanjo argues that African agriculture needs innovation and the youth. Audio Hospitals inside mountains Technology Malaria breathalyser Analysis blog: 26/05/16 Brazilian ethics clash exposes science culture gap Biomedical and social science organisations are battling over human research guidelines, says Carla Almeida. Ethics Human rights R&D Governance Opinion: 25/05/16 Make farming a rewarding career for Africa's youth Former Nigerian President Olusegun Obasanjo argues that African agriculture needs innovation and the youth. Farming Agriculture Food security Migration News: 25/05/16 Malaria breath test goes for field trials The trials will see if the test can identify the distinctive chemicals people exhale even early on in infections. Malaria Health Technology Disease Innovation Multimedia: 24/05/16 The cave hospitals of Syria’s front line Medics are using underground clinics and surgery guided by satellite link to save lives, says Zaher Sahloul. Conflict Aid Health Human rights Technology How to report scientific findings Journalists may find scientific research dense and complex, so it can be a daunting challenge to base a story on an original research paper. Mental illness burden and care: Facts and figures How do mental disorders affect the poor and who can help? Neerja Chowdhary and Vijay Shankar look at the evidence. Mapping trachoma to eliminate blindness Explore how a huge project targeting this infectious eye condition has set the standard for surveying disease. The hidden digital divide The unstoppable global spread of the internet is encouraging, but wider access alone won't close the data gap. Africa's hydropower future Does hydropower hold the key to ending African energy poverty? Discover the data behind the dams in this immersive feature.