The report, "Environmental and Energy Sustainability: An Approach for India", identified clean power and energy-efficiency measures as having the largest potential impact on emissions, with the capability to reduce CO2 output 28 to 34 per cent by 2030. Other significant areas were green transport, sustainable urban and rural housing, and improved agriculture and forestry practices, which could collectively reduce emissions by an estimated 22 to 26 per cent by 2030. Considering that 80 per cent of the India of 2030 is yet to be built, the country may have a unique opportunity to pursue development while managing emissions growth, enhancing its energy security and creating a few world-scale clean technology industries, the study says.