Farming in Sub-Saharan Africa (image) Stanford University Share Print E-Mail Caption Global warming could cause crop shortages and increase food prices by 2030, say climate experts. That scenario could benefit self-employed farmers in developing countries and drive urban residents deeper into poverty. Credit Marshall Burke Usage Restrictions Photographs provided by the Woods Institute for the Environment at Stanford University are to be used - with appropriate credit - for editorial purposes only. Flopping, altering or otherwise embellishing these photos in any way that changes the photographs' editorial content is prohibited. Permission is for one-time use only. Supplied image file must be deleted after use. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.