hennig's map also shows densely populated areas. this view reveals that while india has good access to power, most people in africa still live off grid. >> many of the maps emerged by accident while i was working on my phd. i just found interesting patterns and thought to myself, let's try that out a bit. and then my curiosity led to me discovering other views which i tried and tested out. >> one of his maps looks at where and when it rains most in the world. most rain falls in the second half of the year in south america and southern africa. but here, you can see where the most people get wet, in india and indonesia. this map shows which areas on earth see the fiercest storms -- the oceans. but where is humankind worst affected on land? the answer to that -- north america. perhaps hennig's atlas is most revealing in how humanity is changing. for example, where the population is growing fastest -- in india and africa. or where it's declining fastest -- surprisingly, it's the populous people's republic of china. thanks to the country