- urbanites use less energy and emit less carbon dioxide per household than their suburban counterparts do because they live in closer quarters and use public transportation
- demand for resources will outstrip supply as the number of people inhabiting cities swells from more than three billion today to more than six billion by 2050.
- a key priority for cities adapting to a world transformed by global warming is increasing energy efficiency and reducing greenhouse gas emissions to stave off even more catastrophic climate change.
- cities are significant consumers of energy and emit nearly three quarters of the world’s carbon emissions
- A major focus of C40 is equipping old buildings with energy-efficient features.
- heating hot water accounts for 17 percent of the energy used by buildings in the U.S., according to the Department of Energy
- Tailpipes in the U.S. spew 1.7 billion metric tons of carbon dioxide a year, along with a host of noxious fumes
- Cities must not only conserve energy and limit emissions but also diversify their energy supply.
- fracking—a process for producing natural gas from deep rock—in its watershed because fracking can contaminate water supplies.
- International Food Policy Research Institute estimates that about half of global grain production will be at risk because of limited water by 2050.
- according to the U.N., nearly a third of city dwellers live in slums,
- capturing methane from landfills is one of the cheapest ways to cut down on greenhouse gas emissions while making a new “natural” resource.
China is trying to make a eco-cities throughout history but it was delayed because of its expenses. Many cities are trying to build eco-cities to but it always delayed because of its expenses. It was built so that many people don't have to use transportation they can walk, so that it's not committing gas emissions in the atmosphere. Cities are significant consumers of energy and emit nearly three quarters of the world’s carbon emissions. Many organizations are planning to reduce pollution to cities, for example C40, their major focus is equipping old buildings with energy-efficient features. Cities must also diversify their energy supply.They planned on building the old cities, where majority of the people lives, into an eco-friendly cities because it's more sustainable, easier, and less expenses. Many cities are changing to eco-friendly cities thanks to the people who make the city sustainable, like their efforts to maintain the environment and their houses safe and healthy.
While reading this article, I was imagining me and and my family walking and living into an eco-friendly city, where there are people who are walking, and playing outside, where there isn't much of the usage of energy and gas emission are being exhibited into the atmosphere. Living healthy, no diseases, having fun outside, we should put our efforts to turn most of the cities into eco-friendly cities because there are a greater outcomes. Its just as the article said "it is the people who ultimately make a city sustainable or not."