I did a report on this very subject last year, and figured I'd note a few things:
(1) Technological progression has lead to an unnatural increase in the emissions of greenhouse gasses (carbon dioxide, fossil fuel emissions, etc.) that lead to a greater temperature than what would exist without human intervention.
(2) If these emissions remain constant, there will eventually be an equilibrium temperature that is reached which is higher than what is natural.
(3) Even the most extreme (but reasonable) estimations of the impact of human intervention would make our contribution to global warming relatively insignificant to natural global climatic cycles.
The point is that we are contributing to global warming, but our impact is minimal. This seems to be the theme of the previous thread (that is, when the posts are relevant) and is what you’ll find if you read Scientific American or watch the Science channel, so I'm not sure how much people would agree to some sort of government conspiracy. If you want more of a controversy, I'd take Buzsaw's approach.
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