New York, US Bird-shaped kites make their way down Sixth Avenue during the People’s Climate March. More than 120 world leaders will convene at the UN Climate Summit tomorrow Photograph: Jason DeCrow/AP
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.
Empire State Building by Aimee Hernández by newyorkcityfeelings.com - The Best Photos and Videos of New York City including the Statue of Liberty Brooklyn Bridge Central Park Empire State Building Chrysler Building and other popular New York places and attractions.