Scientists Map CO2 Emissions with Google Earth

Feb. 20, 2009
The U.S. accounts for 25% of global emissions of carbon dioxide.

A team of U.S. scientists led by Purdue University unveiled an interactive Google Earth map on Feb. 19 showing carbon dioxide emissions from fossil fuels across the U.S. The high-resolution map, available at www., shows carbon dioxide emissions in metric tons in residential and commercial areas by state, county or per capita.

Called "Vulcan" after the Roman god of fire, the project, which took three years to complete, quantifies carbon dioxide emissions from burning fossil fuels such as coal and gasoline. It breaks down emissions by the sectors responsible including aircraft, commercial, electricity production, industrial, residential and transport.

"This will bring emissions information into everyone's living room as a recognizable, accessible online experience," said Kevin Gurney, the project leader and an assistant professor of earth and atmospheric sciences at Purdue. "We hope to eventually turn it into an interactive space where the public will feed information into the system to create an even finer picture of emissions down to the street and individual building level."

The U.S.for some 25% of global emissions of carbon dioxide, which scientists have identified as the most important human-produced gas contributing to global climate change.

Simon Ilyushchenko, an engineer at Internet search giant Google who worked on the project, said "integrating the data with Google Earth was a way to advance public understanding of fossil fuel energy usage. Dynamic maps of the data, broken down by the different sources of emissions, easily show where people burn more gasoline from driving or where they use more fuel for heating and cooling homes and businesses."

Vulcan integrates carbon dioxide emissions data from the U.S. Environmental Protection Agency and U.S. Department of Energy. The current data is from 2002, but the scientists said they plan to incorporate more recent data. Besides Purdue, the project also involved researchers from Colorado State University and Lawrence Berkeley National Laboratory. It was funded by NASA, the U.S. Department of Energy, the Purdue Showalter Trust and Indianapolis-based Knauf Insulation.

Copyright Agence France-Presse, 2009

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