There's a growing effort to use hydroponics -- a method of cultivating plants in nutrient-rich water instead of soil -- to bring farming into cities. Hydroponic farming requires less water and less land than traditional farming, and reduces the environmental cost of trucking produce to urban centers. Is this the future of agriculture? full story
Not a brain drain Technology shouldn't make you cross-eyed. Just click on to Digital Biz and get the latest easily digestible dose of technology news and developments.
Vital Signs
Global health "Vital Signs," hosted by Dr. Sanjay Gupta, CNN's Chief Medical Correspondent, is a groundbreaking new show offering a global view on health.
/technology
