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For many decades activated carbon has been indispensable for treating drinking water. Alongside the ion exchanger activated carbon plays the main role in MAVEA filter cartridges. The activated carbon that they use is made exclusively of coconut shells and activated via hot water vapour. The purpose of activated carbon is to absorb substances such as chlorine which impair the smell or the taste from the water.

A Hong Kong-based company is working out the route for a canal across Nicaragua that would rival the Panama Canal, bolster world trade, and might create a strategic headache for the United States.

Bloomberg’s Trish Regan reports on how a cheap, and unexpected drink has broken into the American market, and set off a brand war between beverage giants Coke and Pepsi.