พวกมึงแค่เพื่อนกันจริงดิ

SEOUL -- Cities make up about two percent of our planet's surface, yet the number of urban dwellers accounts for more than half of the world's population. Such tremendous growth and density have presented its fair share of challenges, namely that cities are responsible for 70 to 80 percent of global greenhouse gas emissions, much of which is due to buildings, cars and other urban environments.