It's a map in which we stretched places, so that those areas which contain many people are drawn larger, and those areas, like the Sahara and the Himalayas, in which there are few people, have been shrunk away.
Det är en karta där vi har sträckt ut platser så att de med en stor befolkning  har förstorats, och områden som Sahara eller Himalaya, med liten befolkning har krympts ner.