Today, metropolitan areas are populated with 55% of the world’s population, and this figure is expected to rise to 68% with 6 billion urban dwellers by 2050. Cities are responsible for most of the world’s economic activity, energy consumption, and greenhouse gas emissions. The major contributors to carbon footprints are: food, consumption, transportation, and household energy.
Environmental degradation already is costing India approximately US$80 billion per year or 5.7% of GDP. India’s emerging cities are critical to the country’s economy, with up to 75% of the national GDP contributing by 2020.