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Reply #4: What matters is the trend in frequency of extreme weather events [View All]

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Barrett808 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-21-10 02:14 PM
Response to Reply #3
4. What matters is the trend in frequency of extreme weather events
A change in the underlying weather statistics is evidence of changing climate. We can make out the climate-change signal quite clearly in several instances, for example:

Record Hot and Cold Days in Australia, 1960-2009

California Heat Waves, 1948-2006

Extreme One-Day Precipitation Events in the Lower 48 States, 1910–2008

Canada Winter Temperature Departures, 1948-2010

Trends in Historic European Droughts, 1962-2004

NOAA: ‘North American snow cover for April 2010 was the smallest on record.’

Global statistics also show that climate is changing, for example:

NOAA: Hottest April and hottest Jan-April on record

Changes in regional weather statistics such as these support the theory that climate is changing globally. These observations disconfirm the claim that global climate is not changing.
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