Check out this artcile from CNN -

(CNN) -- A map of significant climate events for the United States in June looks almost apocalyptic: hellish heat, ferocious fires and severe storms leaving people injured, homeless and even dead.

That followed a warm winter and early season droughts. News came Monday that the mainland United States experienced its warmest 12 months since the dawn of record-keeping in 1895.

And on Tuesday, the National Oceanic and Atmospheric Administration (NOAA) released a report calling 2011 a year of extreme weather.

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Just to add to this blog, here's another article from NBC News...

 2011 Texas drought was 20 times more likely due to warming, study says