Urbanization and Energy

World Citie and Population

World Cities and Population

Emissions

Co2 Emissions

When we compare the Koppen World Climate Classification Map with the map showing cities and population, we get a picture of those climatic regions where building activity is most evident today and where it will expand in the coming years.

The growing populations of South Asia, China and regions of South America and Africa will urbanise at an increasing rate. This urbanization pattern will bring with it an increasing dependence on energy for buildings. It is in these regions that Low Energy Strategies for building design will be most critical.

The map of CO2 emissions shows that today the developed nations contribute the major share of CO2 emissions due to consumption of fossil fuels. Whereas the destruction of forests is chiefly responsible for CO2 emissions from the developing countries. It also shows that urban and industrial centers of developed countries emit the highest concentration of CO2. This is an indication of the correlation between urban/industrial life and CO2 emissions. If the present modes of urbanization and building construction continue to be adopted in the urbanization of the developing countries, then we would see a drastic increase in CO2 emission worldwide.

Energy efficient or low energy strategies for building design are needed not only to reduce CO2 emission where they are very high today, but more importantly, to restrict its growth where urbanization is fast expanding.