Global warming is merely a bifurcation of a much larger and an unfathomably more complex entity called "global climate change." It is only because that basically a human beings' attention span relatively falls short in comparison to time over the last few million years or so, and can be said why the general public doesn't really have a great understanding on the concept of Global Warming. Humans haven't occupied the planet forever you know. Global warming has been going of for hundreds of thousands of years if not much more. What scientists can make out for certain is that human beings Are making an tremendous impact Especially within the last 50 years. CO2 levels are completely out of proportion to their scales composed by recorded measurements gathered on Antarctic ice cores, providing data for the last 650,000 years.
Now, for all those pessimistic skeptics out there, i feel your pain. Nonetheless, the Only real reason why a great many of us have not 'felt' the true effect of 'Global Warming' is because of global Dimming. For you people somewhere getting smothered in snow, Global Dimming is the Real why.
http://en.wikipedia.org/wiki/Global_dimming
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