Luxury liners cause of lot of environmental harm - sulfur emissions are at the top of the list.
Brazil and Argentina have developed into dynamic markets for social media. The user numbers for global player Facebook have skyrocketed in the past few years.
Afrikas cell phone market is growing like no other in the world. But hardly anyone here can afford a modern smartphone. Cheap mobile phones are widespread, and young IT developers in Nairobi have specilized in them.
Mathias Ungethüm from the small town of Geringswalde in Saxony shows us his living room. Here the one-time hacker lives and works within 22 square meters.
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