This animated map from NASA shows hourly carbon data over a month. Watch the US glow...
FlowingData Forums » Data Visualization
Animated US Carbon Map
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I wonder how they get this data. It's striking that you can see many of the interstates.
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Found this on the NASA site:
To create the inventory, Gurney and his colleagues relied on existing data at numerous state and federal agencies, including the Environmental Protection Agency, the Federal Highway Administration, and the Census Bureau. Nobody specifically collected data on carbon dioxide emissions, but they each collected data that could be fed into models that would allow Gurney to estimate them.
The EPA had data on how much carbon monoxide industries, power plants, or urban areas generate; what kinds of devices produced it, and the kind and amount of fuel they used. Knowing all these things, says Gurney, “I can figure out how much CO2 was emitted quite easily with simple combustion models.â€
In addition to pollution records, they used county records of everything from the square footage of commercial and residential buildings, to the miles of roads, to how many and what kinds of cars were registered. They gathered these records up, figured out how to tease carbon dioxide emissions from them, and mapped them on a common grid.
I smell a weekend project coming on...
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Yeah, the hub and spoke appearance always impresses me for some reason. :)
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