CO2 maps zoom in on greenhouse gas sources

One summer day a few years ago I was standing on the rim of the Grand Canyon expecting to look down and across at light and shadows melding with multicolored layers of bedrock, the whitewater from the Colorado River calmly glistening a mile below as it carves through rock and time itself... etc etc. Instead, I found my gaze drawn to a line of gray clouds blowing in from the west. They didn't look like rain clouds, and it wasn't long before I discovered it was smog carried on the wind all the way from Los Angeles. I did spend part of that day contemplating the vastness of nature and the power of time, but it was done through a haze of personal guilt. I had just come from a wedding in LA and was sightseeing my way back to Colorado. Part of that cloud was most certainly mine, just as the 3-D explosions of CO2 shown here engulfing most of the U.S. and beyond are collectively ours.

Text accompanying the video: "A new, high resolution, interactive map of United States carbon dioxide emissions from fossil fuels has found that the emissions aren't all where we thought. 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 grid. The Vulcan model examines CO2 emissions at local levels on an hourly basis. Purdue researchers say the maps are also more accurate than previous data because they are based on greenhouse gas emissions instead of estimates based on population in areas of the United States."

More at Purdue's website.