Anybody who believed global warming was man made are having questions now?

[elprincipe]

finalrpgfantasy said:

because britain is close to the arthic, GW doesn't mean that snow and cold will dissapear. Is like that heat wave in 2003 in europe, northern europe was not effect that much compare to the center.

Why do you use 2007?  There are data for 2009:

As you can see, since 2007 the extent has returned to approximately the average for 2002-09.  So far in 2010 the extent is again normal.

But I digress.  Over the last 30 years, the only years in which we've had accurate measurements (this is a very short period of time for this sort of thing, so it's hard to draw conclusions regardless), Arctic sea ice has had a declining trend.  However, Antarctic sea ice has had an increasing trend over that period of time, hitting record highs in 2007 (alongside the Arctic minimum).  If the theory of global warming is true, wouldn't we expect BOTH poles to have less and less sea ice over time?

In any case, even a loss of all Arctic sea ice wouldn't be catastrophic, even though it is unlikely.  It's happened before, if we look at historical records.  Even in Greenland, Viking ruins have been discovered underneath retreating glaciers, indicating it was warmer, or about as warm, during the Medieval Warm Period than it is today.