Planet Earth: 8 billion humans and dwindling resources

Are eight billion humans too many for planet Earth? As we reach this milestone on November 15, most experts say the bigger problem is the overconsumption of resources by the wealthiest residents.

Zimbabwe launches first nano-satellite

Zimbabwe on Monday announced the launch of its first nano-satellite into space in a bid to help collect data to monitor disasters, boost agriculture and enhance mineral mapping.

Air pollution 'silent killer' in African cities: study

Pollution in Africa's fast-expanding cities is deadlier than thought, yet green solutions could save tens of thousands of lives and avert billions of dollars in damage, a report said Thursday.

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