Scott if you are saying human activity is ONE cause of temp increase over multiple decades I agree with you. It seems to be a global trend even in places like Midway Island (Mid-Pacific) where human activity has decreased over decades. Notice the same higher highs and lower lows from the mid 70s onwards (light blue lines) http://weatherspark.com/#!climate;a=USA/UM/Midway_Islands/Sand_Island;ctum=0;cth=500;ctmy=15;ctsy=1
Here is some data on the solar cycle which appears to be less extreme than the last. http://www.swpc.noaa.gov/SolarCycle
/ which would tend to moderate temperatures you would think?
My point is one needs to look at multi decade and multi century numbers to try and figure this out. To look at a decade is just too short a time period. Its like looking at two days worth of TSX index performance and trying to predict how your investment account will look in 10 years.