¡¡The U.N.-sponsored Intergovernmental Panel on Climate Change(IPCC)report released todav ir Brussels has a familiar rin9£® As the climate disasters headlined recently--intense hurricanes£¬drought ir the American West£¬Arctic thawing--become commonplace in a greenhouse world£¬plants£¬animals£¬and peopIe will suffer.That has been the presumption£¬but the latest report from the IPCC projecting greenhouse lmpacts calculates mounting costs that will fan the heaviest on the world¡¯s poor£®
¡¡¡¡February¡¯s IPCC report on the physical science of climate firmly links most of the recent warming of the worjd to human activity.Scientists authoring the second report had a tOugher challenge£ºfiguring ouI the llkely consequences. To do that£¬they considered 29£¬000 datasets from 75 studies£® Of those daca series,89£¥showed changes--receding glaciers or earlier bloomin9£¬for example¡ªconsistent with a response to warmlng.Because those responses usually occurred where the warming has been greatest£¬ the scientists concluded that it¡¯s¡°verY unlikelythe changes were due to natural variability of climate or the system involved.¡°For the first time£¬we concluded anthropogenic warming has had an influence on manY physical and biological systems£¬¡±says Cynthia Rosenzweig of NASA¡¯s Goddard Institute for Space Studies in New York City£¬a coordinating lead author on the reDort£®
¡¡¡¡The IPCC scientists also projected the effects of future warming.Assuming that nothin9£¬s done to slow greenhouse emissions£¬the February report predicted a temperature increase of roughly 3¡ætoward the end of the century£¬drying at lower latitudes£¬ more precipitation at higher iatitudes£¬ and rising sea levels£®¡°This report finds that such a warming will bleach most coral reefs by mid¡ªcentur)£¬£¬drying will be91n decreaslng crop yields at lower latitudes within a few decades£¬and sea level rise and tropical cvclone Intensl¡À1catlon will increase the likelihood of millions of people being flooded out each year on rjver mega£® deltas such as that of the Ganges¡ªBrahmaputra in southern Asia£®Bottom line?¡°You don¡¯t want tO be poor and living on a river delta or the Florida coast£¬¡±says c11mate scientist Stephen Schneider of Stanford University£¬a coordinating lead auth¡£r£® The Door especially subsistence farmers--tend tO be more vulnerable to climate change£¬notes the reort£®And they are least able to adaPt£¬say by building levees against storms or dams for irrigation£®Schneider¡¯s ther advice£º¡°Trry not to go over 2¡æ or 3¡æ because that triggers the really nasty stuff£®With that much warmlng£¬the bad effeCts of this century only get worse£¬and the rare benefits£¬such as higher crop vields in wetter areas£¬fade£®[422words]
¡¡¡¡1£®The IPCC report______£®
¡¡¡¡A£®sounds familiar to US
¡¡¡¡B£®has become commonplace
¡¡¡¡C£®warns US of climate disasters
¡¡¡¡D£®has been presumed long before
¡¡¡¡2£®The IPCC report focuses on______£®
¡¡¡¡A£®the likelihood that plants£¬animals£¬and people will suffer
¡¡¡¡B£®he heaviest COSTS of greenhouse impacts on the poor people
¡¡¡¡C£®the devastating climate disasters resulting from global warmjng
¡¡¡¡D£®intense hurricanes, drought in the American West, and Arctic thawing
¡¡¡¡3. Many data series show that climate changes, such as Arctic thawing, ______£®
¡¡¡¡A£®are a response to anthropogenic warming
¡¡¡¡B£®result from the natural variability of climate
¡¡¡¡C£®influence many physical and biological systems
¡¡¡¡D£®bring about the heaviest costs on the world¡¯s poor
¡¡¡¡4. The harm of future global warming to us may include______£®
¡¡¡¡A£®receding glaciers and early blooming
¡¡¡¡B£®more precipitation at higher latitudes
¡¡¡¡C£®drying at lower latitudes and rising sea levels
¡¡¡¡D£®numerous people in coastal areas being flooded out
¡¡¡¡5. The authors of the IPCC report believe that______£®
¡¡¡¡A£®the bottom line is not to live on a river delta
¡¡¡¡B£®being richer is less vulnerable to climate change
¡¡¡¡C£®something worse is to come from global warming
¡¡¡¡D£®the temperature increase should be less than 2¡æ or 3¡æ
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¡¡¡¡¢ÙEAs the climate disasters(headlined recently)jntense hurricanes£¬drought in the American West£¬Arctic tha wing--become commonplace in a greenhouse world]£¬plants£¬animals£¬and people will suher.
¡¡¡¡¡¾½á¹¹¡¿·½À¨ºÅËù±êʾµÄ¡°As the climate disasters¡become commonplace¡world¡±ÊÇÔÒò×´Óï´Ó¾ä¡£Ô²À¨ºÅËù±êʾµÄ¹ýÈ¥·Ö´Ê¶ÌÓï¡°headlined recently¡±ÊÇ¡°disasters¡±µÄºóÖö¨Óï¡£ÆÆÕÛºÅÖ®¼äµÄ²¿·ÖÊǶԡ°climate disasters¡±µÄ²¹³ä˵Ã÷¡£±¾¾äµÄÖ÷¾äÊÇ¡°plants£¬animals£¬and people will suffer¡±¡£ examda
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