If you like graphical presentations of data you need to take a look at Gapminder. Some beautiful and fascinating interactive graphs. Spend some time with the visual display; there are a lot of controls allowing customizable views, speed, ability to highlight particular countries/regions, etc. Find the small arrows on each axis and the bubble size legend to select any 3 sets of data to correlate over time. Change axes between linear/logarithmic to better separate the data points.Here's an interesting chart correlating total CO2 emissions, emissions per person and total population by country. Notice how little the change in emissions is from increases per person rather than population growth. Also, check out the paths of China and India. Here's with the data correlated to total energy consumption instead of population. Watch China's acceleration of the past few years. Great stuff.
UPDATE: To get an idea of some of the things this tool can do, check out this presentation:
You've never seen data presented like this. With the drama and urgency of a sportscaster, statistics guru Hans Rosling debunks myths about the so-called "developing world."
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