本文摘要：The supposed consensus on man-made global warming is facing an inconvenient challenge after the release of new temperature data showing the planet has not warmed for the past 15 years.新的温度数据表明，地球在过去的15年间并无气候变化。这一数据公布后，人为引发全球气候变化的共识受到了有利挑战。

The supposed consensus on man-made global warming is facing an inconvenient challenge after the release of new temperature data showing the planet has not warmed for the past 15 years.新的温度数据表明，地球在过去的15年间并无气候变化。这一数据公布后，人为引发全球气候变化的共识受到了有利挑战。The figures suggest that we could even be heading for a mini ice age to rival the 70-year temperature drop that saw frost fairs held on the Thames in the 17th Century.数据表明，人类甚至有可能面对小冰河期，思与17世纪泰晤士河上举办霜降不会的70年降温相提并论。

Based on readings from more than 30,000 measuring stations, the data was issued last week without fanfare by the Met Office and the University of East Anglia Climatic Research Unit. It confirms that the rising trend in world temperatures ended in 1997.上周，英国气象局和东安格利亚大学气候研究中心悄无声息地公布了这些基于3万多个监测站的数据，证实世界温度下降趋势相接1997年。Meanwhile, leading climate scientists yesterday told The Mail on Sunday that, after emitting unusually high levels of energy throughout the 20th Century, the sun is now heading towards a grand minimum in its output, threatening cold summers, bitter winters and a shortening of the season available for growing food.昨日主流气候学家对《星期日邮报》称之为，太阳在整个二十世纪都收到异乎寻常的高能量，现在于是以南北太阳辐射输入的最低值，人们将面对冷夏、严冬以及粮食种植季节延长的威胁。Solar output goes through 11-year cycles, with high numbers of sunspots seen at their peak.太阳辐射输入已完成了十一年的周期，高峰期经常出现大量的太阳黑子。

We are now at what should be the peak of what scientists call Cycle 24 which is why last weeks solar storm resulted in sightings of the aurora borealis further south than usual. But sunspot numbers are running at less than half those seen during cycle peaks in the 20th Century.我们现在正处于科学家所谓的第24个太阳活动周期的高峰期，这就是为什么上周的太阳风暴造成比平时更加偏南的地方经常出现北极光。但是太阳黑子的数量多于二十世纪的太阳活动周期峰值的一半。

Analysis by experts at NASA and the University of Arizona derived from magnetic-field measurements 120,000 miles beneath the suns surface suggest that Cycle 25, whose peak is due in 2022, will be a great deal weaker still.美国宇航局和亚利桑那大学的专家分析，从太阳表面以下12万英里的磁场测量推测，第25个太阳活动周期的高峰期将在2022年，太阳辐射将大大巩固。According to a paper issued last week by the Met Office, there is a 92 percent chance that both Cycle 25 and those taking place in the following decades will be as weak as, or weaker than, the Dalton minimum of 1790 to 1830. In this period, named after the meteorologist John Dalton, average temperatures in parts of Europe fell by 2C.据英国气象局上周公布的报告，第25个太阳活动周期以及随后数十年间的太阳辐射，有92%的可能性超过1790年至1830年间的道尔顿最低点，甚至要强。在这段以气象学家约翰道尔顿命名的时期里，欧洲部分地区的平均温度上升了2摄氏度。

However, it is also possible that the new solar energy slump could be as deep as the Maunder minimum (after astronomer Edward Maunder), between 1645 and 1715 in the coldest part of the Little Ice Age when, as well as the Thames frost fairs, the canals of Holland froze solid.然而，这次新的太阳能量下跌也有可能超过蒙德最低点（以天文学家爱德华蒙德命名）的幅度，即1645年到1715年间小冰河期最热的时候，那时泰晤士河、荷兰运河都冰封失效。

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