Toronto Mayor David Miller announced that his city would be using a tool, called Zerofootprint Toronto, to calculate carbon  emissions for the city’s 50,000 employees this July.

While personal carbon calculators are all the favour across the web, the unveiling of Zerofootprint’s carbon counter at the C40 Climate Summit last week ushers in a new era of a large scale web-based data warehousing that can aggregate carbon emission information from city government, companies, universities, neighborhoods, groups or families.

Source: World Changing – Change Your Thinking

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