Handayani, Wiwandari - 2020
Globally, cities are the source of over 70 percent of the world's greenhouse gas emissions. Cities are also the engines … of the global economy, concentrating more than half the world's population, and they are where the middle class is … rapidly expanding. Indeed, by the year 2050, two-thirds of the world will be urban, with cities accommodating an additional 2 …
