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Coral reefs are the 'rain forests of the sea', prized for their beauty and resources the world over. They are also one of the earth's most vulnerable ecosystems threatened by climate change. And no place better symbolises their importance and their plight than Australia's Great Barrier Reef. TechK…

The latest World Health Organization data indicates that 1.9 billion people worldwide are overweight, with 600 million considered obese. Sugar, in the form of processed, high-in-sugar foods are largely to blame. Scientists around the world are making a desperate plea to stop an epidemic of obesity…

From space, the Earth is a big blue planet covered 70 percent in water. However, a closer look reveals that only two and a half percent of that is fresh water, with only one percent being easily accessible to keep our 6.8 billion inhabitants alive and well. On TechKnow, we explore the possible sol…