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17 May, 2012 Thu
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| Ecopolis
(6)Ultimate Ecopolis 未來之都2050 | 6 Jan 2010 at 09:35p.m. |
In this episode, Dr. Kammen reviews 20 bold solutions to five challenging environmental issues facing future cities. Based on the feasibility of implementing the technologies involved and on the solutions' ability to reduce carbon production, Kammen has narrowed the list to five of the best. Now, he will decide which single innovation should take priority in the fight to save our future cities. |
| Ecopolis
(5)Powering the Future 未來之都2050 | 30 Dec 2009 at 09:35p.m. |
本集的主題是未來電力。一旦沒有可靠的電力供應，我們的城市便將不再存在。到2050年，我們將有百份之七十五的人居住在市區，過著消耗大量能源的生活，用電量會接近現時水平的三倍。到2050年，專家預料像《未來之都》的城市，各人所排放出來的二氧化碳會超出目前五倍，焚燒礦物燃料將可能是最主要的元凶。
In 2050, experts estimate, the world's urban areas will use nearly three times more energy than today's cities. Burning fossil fuels is the most likely source for that power, and that means producing five times more carbon dioxide emissions per person. Cutting those CO2 emissions could mean turning to nuclear fusion power, wind turbines, solar power, and/or carbon recapture and storage. |
| Ecopolis
(4) Building the Future 未來之都2050 | 23 Dec 2009 at 09:35p.m. |
目前城市雖然只佔據地表面2%的面積，但卻佔用了全球75%的能源需求。光是暖氣、照明與冷氣就消耗了一半的電力。這樣能源的消耗量不僅龐大，而且節能效率不彰的建築物更會浪費全球13%的能源。如果未來城市Ecopolis要繼續生存茁壯，提升建築節能效率將是首要關鍵。
節目中將提出四項具有未來前瞻性的建築技術：
1)空氣膠(Aerogel) - 用作建築物的超強隔熱建材。
2)混合太陽能照明(Hybrid Solar Lighting) - 將自然太陽光引導到建築物裡的黑暗角落，減少未來城市在白天使用大量人工照明所消耗的龐大能源。
3)綠化屋頂(Green Roofs) - 讓城市降溫，也有助於城市的綠化與淨化。
4)毫微太陽能光伏電池nano-solar PV cells。
Currently, metropolitan areas cover roughly 2 percent of Earth's surface but account for approximately 75 percent of the world's energy demand. The buildings within those cities are inefficient, simply leaking 13 percent of the energy used back into the environment. If we are to create a less wasteful future, the buildings of tomorrow must become more energy efficient and four technologies – super-efficient Aerogel insulation, hybrid solar lighting, green roofs and nano-solar PV cells – may help. |
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