Increasing population on Earth and acts of humans, are considered to be two chief reasons for climate change and rise in green house gases. The words have become so common that both are being used on daily basis by people even for a slight increase in temperature.

Though the words do not have much value for a common man, it is a high time now that awareness should be raised about the both the terms. One among the terms, is carbon emissions, which cannot be seen by people, but majority of it is being generated in urban cities.

In order to open the eyes of people about how much carbon emissions is being produced, a group of researchers from Arizona State University, has come up with a new technique. The new software is named as "Hestia", which is the name of the Greek goddess of the hearth and home.

Complete details of the development are being provided in the journal Environmental Science and Technology. The model is based on details of pollution report and traffic counts among other factors. "Cities have had little information with which to guide reductions in greenhouse gas emissions - and you can't reduce what you can't measure", said Kevin Gurney, who is a senior scientist with the Global Institute of Sustainability.