PHYSICS/BK21 Colloquium[09.11.20]
관련링크
본문
| “Climate Change, Environment, and Science” Ø* Speaker :바카라 양방 배팅Prof. In Soo Ko [POSTECH] Ø* Place : Demonstration Lecture Hall 122,바카라 양방 배팅Postech Information Research Laboratories Ø* Date & Time : Nov,바카라 양방 배팅20(Fri)바카라 양방 배팅4:00 ~ 5:00 pm ØAbstract Since modern life style was started with many home appliances such as refrigerator and air conditioner, the바카라 양방 배팅quality바카라 양방 배팅of바카라 양방 배팅our바카라 양방 배팅life바카라 양방 배팅improved바카라 양방 배팅dramatically.바카라 양방 배팅However,바카라 양방 배팅refrigerating medium at that time was either sulfur dioxide or methyl formate, which바카라 양방 배팅is바카라 양방 배팅either바카라 양방 배팅highly toxic or flammable. To replace such dangerous gases, Chloroflourocarbon바카라 양방 배팅(CFC)바카라 양방 배팅was introduced in 1930s. Because of their stable properties, CFCs called바카라 양방 배팅Freon바카라 양방 배팅had바카라 양방 배팅been used widely from refrigerating medium to fire extinguisher to바카라 양방 배팅cheap바카라 양방 배팅solvent.바카라 양방 배팅Unknown to then scientists, Freons were migrated from atmosphere to stratosphere, or the ozone layer. With strong UV light from Sun, Chlorine atoms were freed바카라 양방 배팅from바카라 양방 배팅CFCs바카라 양방 배팅and바카라 양방 배팅they started to destroy the ozone layer seriously. To prevent clear and present danger from above, international treaty was set up and CFCs were banned to produce. This treaty is called “Montreal Protocol.” Similar situation바카라 양방 배팅is바카라 양방 배팅now바카라 양방 배팅repeating바카라 양방 배팅to바카라 양방 배팅Earth.바카라 양방 배팅It바카라 양방 배팅is바카라 양방 배팅called “Global Warming.” It is believed바카라 양방 배팅to바카라 양방 배팅be바카라 양방 배팅triggered바카라 양방 배팅by바카라 양방 배팅so바카라 양방 배팅called바카라 양방 배팅green바카라 양방 배팅house바카라 양방 배팅gases (GHG: mostly carbon dioxide and methane). Another international effort, called바카라 양방 배팅Kyoto Protocol, to reduce the concentration of such GHGs is undergoing.바카라 양방 배팅We바카라 양방 배팅will바카라 양방 배팅discuss about what is Kyoto Protocol and how much it will influence to our future. Contact Person : Prof. Ki Bong Lee (054-279-2068, kibong@postech.ac.kr) |
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