Not quite an amazing parallel
Not that good a parallel...
For starters, its massively easier to understand what happens with the human body. For 1, its a lot better understood. For 2, its easy to observe what happens (shorter lifetimes etc). For 3, control samples are easy to come by. For 4, you could replicate outcomes.
For the climate change... 1, its not really that well understood with very contradictory evidence (note how its gone from global warming to climate change, if it was just warming then you'd have to demonstrate an increase in temperature, now its just change and change happens all the time so is self fulfilling). 2, it happens over thousands of years and is constantly changing. We've only observed a small fraction of it. 3, no other control samples as far as I am aware. Anyone found earth 2? 4, can't really replicate the outcomes. Anyone come up with a decent prediction yet that we can then observe happen?
I'm deliberately antagonising here. My frustration is that I believe that this is all part of a control mechanism. As a people we always need to have something to be fearful of... communism, natzis, terrorism from the middle-east, conservative government (joke) and now the best of all climate change. Just something to keep us all busy. Supported by the media as it sells well - its a scandal after all. Not to mention that the vested interests (Grants etc) for people supporting the 'common view'.
For me it boils down to the fact that its so complex, as humans I don't believe we can fully understand all the variables. It has too much skew based on policy and media. The scientists themselves are yet to reach agreement. IF, and I mean IF the government REALLY believed this, then why not put more radical plans in place. Why not limit cars to 50mph (most economical)? Why not put massive tax hikes on high polluting and massive incentives on environmentally friendly. Why not massively tax uneconomical flights? Yeah, sure the economy might suffer, but surely that's better than the world dying. Oh, right - its because no-one else would do it - someone's gotta be first, right?! Why not show them all that we've got some balls?! Why, because we don't believe it either.