1987年9月16日,46个国家接受了蒙特利尔协定书(the Montreal Protocol),控制消耗臭氧层的化学物质。 20世纪70年代开始,研究人员确认,制冷机及喷雾剂中使用的氯氟碳化合物(Chlorofluorocarbons,简称 CFCs)会积聚在平流层,消耗臭氧分子。臭氧...
国际环保公约Montreal protocol 國際環保公約 <<關於消耗臭氧層物質的蒙特利爾協定書>>介紹 PreparedbyJaneMay31,2004 主要內容 國際公約規定客戶相關要求系統文件規定 背景 •原议定书于1987年9月16日订于蒙特利尔。经1990年6月27日至29日在伦敦召开的缔约国第二次会议调整和修正，并经1991年6月19日至21日在...
历史上签署的《蒙特利尔议定书》(Montreal Protocol),目的是保护地球大气层中的臭氧层。当1987年签署该议定书时,人们对于臭氧层破坏的速度、危害性以及各种化学物质对臭氧层的破坏作用等,都不太确定。因此,议定书设定的目标是,要减少对臭氧层最具破坏力的化学物质的生产和排放速度。但是,它也规定了一种机制,通过持...
【答案】：D 本题考查词语意思及冠词用法。题目意为“当世界各国领导人在1987年签署一份名为《蒙特利尔协议》的协定时，氟烃被禁止使用。”A项意为“接触、联系”。B项和A项的名词相同，但是少了个不定冠词a。C项意为“协议、协定”。C项和D项的名词相同，但是少了个不定冠词an. agreement是可数...
Montreal Protocol, officially the Protocol on Substances That Deplete the Ozone Layer, treaty signed on Sept. 16, 1987, at Montreal by 25 nations; 197 nations are now parties to the accord. The protocol set limits on the production of
In order to protect the safety of the earth, the international community in 1987 signed the Montreal protocol on ozone depleting substances (hereinafter referred to as "protocol"), decided to gradually reduce and control the production and use of ozone depleting substance (ODS). Amendment by the...
Signed on September 16, 1987, the agreement is credited for leading the overall ozone layer to recovery. As of September 2006, the size of hole in the ozone layer covered an area as large as North America. The author cites the success of the Montreal Protocol in reducing the consequences ...
Atmospheric scientists identified the actions that humans were taking to cause the stratospheric ozone depletion. Chlorine and bromine, released by the breakdown of CFCs, were particularly problematic. The 1987 Montreal Protocol phased out production and use of these and other substances that d...
Current Online Version: 2016 eISBN: 9780190622664 Find at OUP.com Google Preview Montreal Protocol on Substances That Deplete the Ozone LayerAdopted 16 September 1987, entered into force 1 January 1989 The Montreal Protocol was the first action in recognition of a global environmental problem and o...
Details were defined in the Montreal Protocol on Substances that Deplete the Ozone Layer that was signed in 1987 and ratified in 1989. The substances defined are CFC, HCFC, HBFC, halons, carbon tetrachloride, methyl chloroform, and methyl bromide. The phase-out time for these was defined in ...