Social media's not all bad – it's saving lives in disaster zones

By Paul Reillyand Ioanna Tantanasi

Social media was recently credited with reducing the number of casualties caused by air strikes in the Syrian civil war. The early warning system, developed by tech startup Hala Systems, uses remote sensors to detect aircraft flying over the opposition-held northern province of Idlib. Alerts are then sent via Facebook and instant messaging apps such as WhatsApp to civilians and aid workers in affected areas. These messages give relevant information such as the areas likely to come under heavy bombardment and the duration of these raids.