After the machine age, especially in Great Britain, people's height was the shortest in human history (Clark, 68). Around this time, people began using highly polluted machinery powered by oil or coal, such as cars and trains. Revolution and mass development were beginning. People were suffering due to pollution and their health was severely affected. No one previously expected the English to be better in the 21st century; however it has now become one of the largest cities in the world. Many people believe that economic development is caused by the destruction of the environment, but it is obviously proven that the environment improves with economic development. With economic development, factories begin to change. First, factories start using new energy; for example, many automotive industries look to new energy instead of oil and coal. In September 2013, the first solar-powered car race took place in Australia: "Based on the original idea that a 1000W car would complete the journey in 50 hours, solar cars are allowed a nominal 5 kWh of stored energy, or 10% of solar energy." that theoretical figure" (World Solar Challenge). Secondly, factories begin to produce environmentally friendly consumer goods. Now we can see a large amount of recycled products, such as biodegradable bottles, which cannot be harmful to the environment. Thirdly place, many entrepreneurs try to use environmentally friendly strategies to create a positive image. They date back to 20 years ago, many factories advertised that their products had more effect, which was caused by relatively more energy; all companies try to show their green, healthy, recyclable and reusable goods. Governments start to pay attention to the environment when the quality improves. Initially, the developed government can publish the policy to… middle of paper.. .to ensure that, in many respects, government, companies, citizens and children are willing to protect our very nature. Indeed, many Chinese students and their parents believe that China is and will be permanently polluted, as long as it is not for always, polluting continuously should not be possible in a country with a GDP growing by 8%. Therefore, as a Chinese, don't keep saying that China is dirty and getting dirty. Works Cited Clark, Gregory. “Part 1 The Malthusian Trap: Economic Life to 1800.” A farewell to almsgiving: a brief economic history of the world. Princeton: Princeton UP, 2007. 68. Print.Environment Accounts and Statistics Division. "Business spending on environmental protection". Division of Environmental Accounts and Statistics, 16 November 2010. Web. 25 November 2013.World Solar Challenge, "Overview". World Solar Challenge 2013. 31 May 2013. Web. 24 November. 2013.