PHYSICS/BK21 Colloquium[09.11.20]
관련링크
본문
| “Climate Change, Environment, and Science” Ø* Speaker :바카라 먹튀Prof. In Soo Ko [POSTECH] Ø* Place : Demonstration Lecture Hall 122,바카라 먹튀Postech Information Research Laboratories Ø* Date & Time : Nov,바카라 먹튀20(Fri)바카라 먹튀4:00 ~ 5:00 pm ØAbstract Since modern life style was started with many home appliances such as refrigerator and air conditioner, the바카라 먹튀quality바카라 먹튀of바카라 먹튀our바카라 먹튀life바카라 먹튀improved바카라 먹튀dramatically.바카라 먹튀However,바카라 먹튀refrigerating medium at that time was either sulfur dioxide or methyl formate, which바카라 먹튀is바카라 먹튀either바카라 먹튀highly toxic or flammable. To replace such dangerous gases, Chloroflourocarbon바카라 먹튀(CFC)바카라 먹튀was introduced in 1930s. Because of their stable properties, CFCs called바카라 먹튀Freon바카라 먹튀had바카라 먹튀been used widely from refrigerating medium to fire extinguisher to바카라 먹튀cheap바카라 먹튀solvent.바카라 먹튀Unknown to then scientists, Freons were migrated from atmosphere to stratosphere, or the ozone layer. With strong UV light from Sun, Chlorine atoms were freed바카라 먹튀from바카라 먹튀CFCs바카라 먹튀and바카라 먹튀they 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 먹튀is바카라 먹튀now바카라 먹튀repeating바카라 먹튀to바카라 먹튀Earth.바카라 먹튀It바카라 먹튀is바카라 먹튀called “Global Warming.” It is believed바카라 먹튀to바카라 먹튀be바카라 먹튀triggered바카라 먹튀by바카라 먹튀so바카라 먹튀called바카라 먹튀green바카라 먹튀house바카라 먹튀gases (GHG: mostly carbon dioxide and methane). Another international effort, called바카라 먹튀Kyoto Protocol, to reduce the concentration of such GHGs is undergoing.바카라 먹튀We바카라 먹튀will바카라 먹튀discuss 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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