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Actually, any scientist who tells you, that we need to go back to pre-industrial civilization to save the planet is off his rocker. It might be some of the more extreme environmentalists who are making such suggestions.
Ultimately, definite changes would have to be made in the way we live in the world; but most of it would involve our basic sources of energy, not the ultimate use of it. Nuclear , solar, wind and bio energy would all allow us to significantly curb carbon emissions.
Final thought... I think you have a seriously twisted view of the world. The vast majority of scientists work in fields that have nothing to do with raising alarm bells. Heck, climatologists could work for decades just getting better at predicting the weather 6 months down the road (though such short term analysis is tougher than long term trends). Other weather scientists can and do get plenty of work modeling hurricanes, tornadoes and other short term weather phenomena.
Ultimately, believe it or not, most scientists are not working to get on Television. And most of them, when they started their careers in climatology would not have believed that climatology was the science that would get them name recognition (biology and space science would have done far better jobs of that up until about a decade ago).
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Bill
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