The development challenges in Africa are just one example of how tough societal problems can be addressed by the design and spread of improved technologies. The same will be true of how the world best addresses manmade climate change – another of those seemingly intractable global problems.
非洲的发展挑战只是设计推广革新技术能如何解决棘手社会问题的一个例证。技术革新在应对人为气候变化时同样适用，而后者是看来让人束手无策的另一个全球问题。