Why? Because I took the trouble of standing back to look at the global warming issue from a a different and unique "global" perspective.
The results of my unique study are presented in graph form below.
Note: For a better understanding of global warming and climate change, I recommend Earth's Changing Climate!
Off The Beaten Path
Instead of analyzing surface temperature data - which can be skewed on the warm side, for a number of technical reasons already explained here, I took a more all encompassing look.
I investigated the variations of the weight of the atmosphere, over Canada, over the past 56 years.
The weight of the atmosphere (barometric pressure), as measured at the surface by the Canadian government meteorological stations, can be found at the National Climate Data and Information Archive Of Canada.
The barometric pressure data can be extracted freely from the database of verified and certified observed meteorological data here.
A Significant Sample
Canada has a large footprint on the map of the northern hemisphere. Its data is significantly representative of atmospheric behavior.
I looked at the atmospheric pressure data observed over four widely dispersed Canadian meteorological stations. From west to east:
Why only four stations? I just wanted some samples of atmospheric pressure, spatially dispersed from the west coast to the east coast, over thousands of kilometers (actually about 5000 km).
I feel that such a "cross section" is representative of the behavior of the atmosphere over Canada. I also feel that the results are likely to be somewhat the same, wherever else you might want to look in the world.
The official and certified data just happens to be easy to get at, here in Canada!:-)
Unexpected Global Warming Statistics
Remember that the barometric pressure curve should fall with global warming of the atmosphere.
Why is the atmospheric pressure rising? Because the atmosphere has been slowly getting cooler, over the past 56 years over Canada!
Why is it getting cooler? Is global warming false?
Half the world's scientists are looking into that, right now. The other half is still trying to justify a global warming atmosphere!
Food for thought next time you are presented with global warming statistics!