For trade, humans overcame numerous obstacles--seas, deserts and mountains. First with rudimentary and then increasingly evolved means. By taming animals such as donkeys, horses and...
It's possible to exploit wood resources while respecting the primary forest. Woodcutting is not necessarily harmful since, with time and means, wood is a renewable...
Kenya's leading tourist destination, the Masai Mara National Reserve is one of the world's largest protected areas when added to the adjacent Serengeti National Park...
Los Angeles, a sprawling conurbation with a population of 17 million, is constantly animated by the traffic on its tangle of end-to-end freeways. At night,...
