| 학회 | 한국재료학회 |
| 학술대회 | 2008년 봄 (05/22 ~ 05/23, 상록리조트) |
| 권호 | 14권 1호 |
| 발표분야 | 에너지환경/생체재료 |
| 제목 | Global trends of ecomaterials for food and fuel |
| 초록 | Recently, daily newspapers surprises us everyday because of the unbelievable increase of the prices of food, fuel, and materials such as gold, silver, and steel. The production cost of iron per ton increases 130 US$ compared to that in 2007. Major factors are the increases of the imported coal, iron scrap, and iron ore, which are associated with the global warming. The followings are the some introduction of the reports of the "Worldwatch Institute," and "Renewables 2007 Global Status Report" " for a sustainable eco-world. REN21 "Renewables 2007 Global Status Report" highlights that the industry broke all past global records, installing 5,244 megawatts (MW) of new energy capacity in 2007, or 30 % of all new US capacity added. This brings the cumulative national total close to `17,000 MW- enough to power more than 4.5 million US homes. The United States invested more than US$10 billion in new renewable capacity in 2007, coming in the third behind Germany and China. Most of this went to new wind power installations and photovoltaic cells. World biofuels production rose 28% to 44 billion liters in 2006; fuel ethanol was up 22 % and biodiesel rose 80%. Although biofuels comprise less than 1% of the global liquid fuel supply, the surging corn prices have benefited some, but have caused a host of other problems of air and water pollution as well as the loss of economically important recreation and hunting area. The United States, Brazil, and China continues to lead the world in production and use of ethanol. The industry had about 6.9 billion gallons (more than 26 billion liters) of annual production capacity in 2007 - a 60% increase over 2005 - and most gasoline in the United States is now blended with ethanol (up to 20% in 2010 year). Current biofuels production methods place a heavy burden on land and water resources, due in part to the fossil fuel- and a chemical-intensive corn that is used to produce over half the world's ethanol. The increase in world agriculture prices causes of the world's rural poor, according to the Worldwatch Institute. This biofuels alone will not solve the world's transportation-related energy problems, however, ecomaterials and design for the dramatic improvements in vehicle fuel economy should be carried out for global potential and implication for energy and environment. Today's higher prices may allow them to sell their crops such as corn, cotton, and sugar, but go to the world's 800 million undernourished people, most of whom lives in rural areas. |
| 저자 | 이수완 |
| 소속 | 선문대 |
| 키워드 | ecomaterials |
