SciDev.Net brings you the articles that had most visitors in 2012, including news, features and opinions.
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A 12-year study in Southern Africa has found that intercropping has a long-term positive effect on rain-fed maize yields.
Plastic bags are too practical to be banned, but policies to manage their use are necessary to protect the environment, says Lilia Casanova.
A Tunisian wind turbine that replaces blades with sails, can capture twice the wind energy of existing turbines, its creators claim.
An Egyptian teenager has devised a low-cost method for producing biofuel from plastics, and will receive assistance with progressing her idea.
Uncertainty is part of science but it's no excuse for indecision. Chandrika Nath shows how to communicate uncertainty to policymakers.
Durable food security and agricultural growth depend on development strategies with resilience built in from the start, says Gordon Conway.
Adrian Smith and colleagues explore grassroots innovations, their potential for development and challenges facing practitioners.
A capacity building fund will link up UK and African research teams to investigate water, renewable energy and soil.
Canada's International Development Research Centre is to close two of its six global offices following heavy budget cuts.
Early results from the release of millions of genetically modified mosquitoes in Brazil are 'positive', say dengue researchers.