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Politique. Globaïa. Religions. Beautiful Weather Graphs and Maps | WeatherSpark. Interactive. The World of Seven Billion The map shows population density; the brightest points are the highest densities. Each country is colored according to its average annual gross national income per capita, using categories established by the World Bank (see key below). Some nations— like economic powerhouses China and India—have an especially wide range of incomes. But as the two most populous countries, both are lower middle class when income is averaged per capita.

The 70 Online Databases that Define Our Planet. Back in April, we looked at an ambitious European plan to simulate the entire planet. The idea is to exploit the huge amounts of data generated by financial markets, health records, social media and climate monitoring to model the planet’s climate, societies and economy. The vision is that a system like this can help to understand and predict crises before they occur so that governments can take appropriate measures in advance. There are numerous challenges here. Nobody yet has the computing power necessary for such a task, neither are there models that will can accurately model even much smaller systems.

Today, we get a grand tour of this challenge from Dirk Helbing and Stefano Balietti at the Swiss Federal Institute of Technology in Zurich. It turns out that there are already numerous sources of data that could provide the necessary fuel to power Helbing’s Earth Simulator. WikipediaWikipedia is the most famous cooperatively edited encyclopedia. Where’s George? World.