Sustainability means that the resources do not only meet the demands of contemporaries, but also can meet the requirements of offspring, and is to propose long-term environmental strategies for achieving sustainable development to the year 2000 and beyond (Introduction to Sustainability: Humanity and the Environment). In the past, people always think that the resources and natural resources could not be used up. Therefore, people tried to explore the resources everywhere in the world. No matter how many resources people explored from the earth, people would use it. However, finally, people knew that there were not exhaustless resources. Humans started to realize that we need to save resources for the next generation. Then, many organizations in the world proposed the concepts of sustainability in 1980. Sustainability is very important for the society to develop, so everyone should contribute on the sustainability.
Source: Introduction to Sustainability: Humanity and the Environment.Chapter1. P5.
First, for me, I always prefer taking public transportation to driving. In the U.S., almost everyone has his/her own car. In average, every family has two cars. America is the country that moving on the car. Cars are more like people’s feet in this country. People who like cars think that cars are more convenient and they can save more time on waiting for the buses or trains. However, people forget that the automobile exhaust is very bad for the environment. Especially, cars are much cheaper to buy in the U.S., and many young adults can also afford by installments. With the development of technology, cars will be much cheaper in the coming decades than today. Many more people will have cars, even more than one cars per person. In the coming decades, there will be only cars on the roads, and public transportation will be just empty or very less people to use. People save more time by driving, but the environment will be much worse by the automobile exhaust. In addition, people will have less exercise and live in a society that is full of exhaust.
Second, people do not need to pay for the water supply or pay very less money for the water in America. Therefore, people do not care about using water. People think that we have so many lakes, oceans, and rivers on the earth, so we do not need to worry about the lack of water. Clean, safe drinking water is scarce. Today, nearly 1 billion people in the developing world don’t have access to it. Yet, we take it for granted, we waste it, and we even pay too much to drink it from little plastic bottles (the water project). However, water resources are getting little and litter in recent decades. Many places, like Africa, are vary lack of water. Many more places suffer drought in recent decades. In addition, population is getting larger and larger, but the rain water is getting much less and less. Al l the water that are from all the lakes, oceans, and rivers will be used up by the growing population. Then, what can the people use in coming decades or the offspring in the next century? Will the earth become a planet that is covered by sands or deserts? Could we imagine that there is no water in the planet? People will not live without water. Therefore, the contemporaries should save water as much as we can today
Source: The Water Project. For 1 Billion People. WATER SCARCITY & THE IMPORTANCE OF WATER.