Recently I had been asked about generating a per capita map of fossil fuel based carbon dioxide emissions for the US as a follow up to a previous post that showed total carbon dioxide emissions per county.
The two maps differ greatly. The total map looks very similar to a population map, which one might expect. The per capita map in general shows that our urban areas are more efficient in their energy usage. Which message is right? Well, fortunately, my esteemed colleague Lisa Moore happened to be in our lovely San Francisco offices today, so I posed the question to her.
“How about showing both on one map?” She opined.
Now, we happen to be in test mode here at EDF. Testing out all kinds of new map publishing software for the web, seeing what’s effective, easy to use, informative, and what is not. So I ran a test on a flash based platform called Geoclip, a French company that specialized in Flash based interactive mapping software. I really like what it can do, though I’d like to simplify the interface a bit. As of now, there’s a lot of ways to play with the interface and data. All I ask of you is that you check this puppy out, play around a bit, and then comment back here about what you like, and what you didn’t.
You must have adobe flash player 9 on your browser to make this work. If you don’t have it, you’ll be prompted to download it, which I urge you to do.
Let the map completely load before you begin to play. You should see a yellow to red background map of counties with black dots of various sizes overlaid on top.
When you scroll around the map, you will get data on how much CO2 that county emits, along with the per capita values. The data comes from the Vulcan Project, a wonderful resource out of Purdue University.