Quote:
Originally Posted by PR_Glen
because weather cycles are supposed to be studied in at least 500 year intervals, not 5.. so all data is worthless until we get numbers that go that far back.
a brief look at history will show you times of bitter cold in summer months and terrible heat and drought in winter months. No meteorologist data though so we base our numbers on what? the last 100 years? Not good enough...
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Scientists can tell things such as temperature, humity, cloud cover etc, by examining old tree rings.
http://www.priweb.org/globalchange/c...cc/scc_01.html
And again, Weather is not climate. Just because we have a hotter than normal summer or colder than usual winter is not an argument for or against climate change. Weather is local, climate is global. What scientists are concerned about is the global average temperature. Just a couple of degrees higher will make a big difference.