Argentina's farmers cannot roll back climate change -– but with a new biotech advance which allows crops to survive in hot, dry climes, they may not need to. One team has found that transferring a sunflower gene into cereal crops like corn and soy can help them to survive longer without water, and even make them more productive. The discovery is being touted as Argentina's next genetically modified "miracle" -- for better and for worse. Duration: 02:08
