Traditional approaches to supplying food are an inefficient 'band aid', says Pedro A. Sanchez. New evidence shows that helping farmers to help themselves is more effective and would be six times cheaper.

Supporters of small-scale farming claim that it provides livelihoods, and it can also conserve agrodiversity. In an attempt to show this, an international network of scientists joined hands with farmer communities to document

Malaria control in Africa is most tractable in urban settlements yet most research has focused on rural settings. Elimination of malaria transmission from urban areas may require larval control strategies that complement adult mosquito control using insecticide-treated nets or houses, particularly where vectors feed outdoors.

When biofuels emerged on the global scene, they were regarded as the final answer to our dependence on fossil fuels and our climate change concerns. But over the last couple of years, biofuels have uncovered another face

Along with all the development problems confronting African cities, they are under-resourced and ill prepared to cope with the hazards of Global Environment Change (GEC). Here leading experts, David Simon and Cheikh Gu