Urban farming goes vertical, as Singapore opens a 30-feet tall greenhouse for bok choy and cabbage. The farm is already producing half a ton of veggies per day for local supermarkets. But are these vertical "farmscrapers" any more efficient than traditional, flat greenhouses?
Iran's economy has been hit hard by U.S.-led sanctions that have targeted its oil exports and its banking system. In response, Iran appears to have gone on a gold buying spree as it attempts to halt the downward spiral of its currency.
In his acceptance speech, President Obama said he would reach out to his Republican rival. A young mother in Kenya seems to have caught the spirit of reconciliation. On Wednesday, Millicent Owuor gave birth to twin boys, and named them Barack Obama and Mitt Romney.
At health clinics along the Thai-Myanmar border, malaria is getting tougher to treat as resistance to medication grows. Doctors say it may be time to focus on eradicating malaria before the drugs lose potency.
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