According to Michel Jarraud, people should NOT______.

People in Europe are shivering, while people in North Asia and parts of Australia are sweltering. Scientists say these weather extremes are to be expected and neither phenomenon can be used as a case for or against global warming. Secretary-General of the World Meteorological Organization, Michel Jarraud, says people should not confuse local weather variability with climate change.
    Just because people in Geneva and elsewhere in Europe are shivering does not mean global warming has stopped. He says the trend toward global warming is still there.
    Jarraud says last year was cooler than the year before, but 2008 still ranks as the 10th warmest year on record. He says average global surface temperatures have climbed significantly since 1850, when historical weather statistics were first recorded. ? Jarraud says every year, somewhere in the world weather records will be broken. He says every year, exceptional weather events will take place somewhere in the world. He says people have to look at the global picture to assess whether climate change is taking place.
    Scientists say human activity contributes to climate change, but they do not agree on the pace at which climate change may be unfolding.