Mapping CO2 emissions. Researchers at Purdue University have released a new map of CO2 emissions in the USA:

The maps and system, called Vulcan, show CO2 emissions at more than 100 times more detail than was available before. Until now, data on carbon dioxide emissions were reported, in the best cases, monthly at the level of an entire state. The Vulcan model examines CO2 emissions at local levels on an hourly basis.

The East-West divide on the map is quite remarkable, although maybe less so if you have a better understanding of how populations and industry are distributed in the US.