For the first time in human history, in 2008 more people are expected to be living in the world’s cities than its rural areas (according to the UN). We wonder: Which of the following world regions has the highest percentage of its population living in cities?
China remains a veritable juggernaut, powering ahead and constantly moving up in global economic rankings. With all the numbers constantly being tossed about, we wonder: What percentage of the global economy does China actually account for?
The U.S. debate about immigration has been brewing for some time. It has triggered emotions on many sides and given rise to many — often conflicting — proposals. With bipartisan reform legislation now pending before the U.S. Congress, we wonder: What would be the population density of the United States if everyone in the world, some 6.7 billion people, were to live there?
Among humankind's greatest achievements is certainly the reduction in mortality. Thanks to medical breakthroughs unimaginable just decades ago, today people in developed and developing countries alike are living longer than ever. We wonder: What was the world’s average life expectancy just over 100 years ago — at the beginning of the 20th century in 1900?
As more and more nations develop a strong appetite for oil, the depletion of the world's reserves is becoming an ever more important issue. As nations around the world vie to secure their energy supplies for the future, we wonder: What percentage of global oil reserves is located in the United States?