[QUOTE=engineer_comp_geek]
I haven’t read the book, so I don’t have an opinion on that of course.
“Global warming” is just an observation. If you look at the data, it shows that the earth on average has been getting warmer since we’ve been collecting data on the temperature.
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Actually, we have fairly reliable data on world temperatures going back at least two thousand years, and the trend is consistent.
[QUOTE=engineer_comp_geek]
The exact amount of warming depends on whose data you are using, but mostly if you graph the data you end up with something like this:
http://carto.eu.org/IMG/arton2480.jpg
It seems pretty clear that the earth is getting warmer, at a few tenths of a degree C per century. Very few people are arguing over this. It’s when you ask “why” that all of the arguments start.
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There’s two loud arguments: whether it’s substantially anthropogenic is just the somewhat less nonsensical of the two. But there are still plenty of people claiming that global warming just does not exist at all or at least is not a danger. None of those arguments are particularly mainstream; they’ve pretty much been marginalized by the scientifically rational.
[QUOTE=engineer_comp_geek]
Chriton has his opinion, and lots of scientists have their opinions.
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Crichton does not have the luxury or the knowledge base to form anything other than a mere personal opinion on this subject. There is zero justification for giving him the benefit of the doubt here. He cherry-picked his data quite disingenuously in order to justify his marginal personal opinion and get the answer he wanted to believe all along. He has great contempt for environmentalists, possibly due to his links to libertarianism (he recieved at least one award from a libertarian pseudo-science organization), and it should come as no surprise that an intellectually dishonest person will distort their views to serve their ideology.
[QUOTE=engineer_comp_geek]
The scientist’s opinions tend to carry a bit more weight, but they are still just opinions.
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By that logic, everything is just an opinion: heliocentricity, gravity, that the sun shines. That’s not a useful model for discussion or debate, though.
[QUOTE=engineer_comp_geek]
I don’t think anyone understands the complexities of the earth’s atmosphere enough to say for certain at this point.
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Just as no one understands the complexities of anything else to say for “certain”. But, as you well know, there are legitimate methods that allow us to approach certainty, and climate science is sufficiently advanced and understood to allow a very strong – if always provisional – finding that global warming is both real and extremely dangerous.
And don’t let the marginalized and ultimately futile debate about its anthropogenic nature keep anyone from acknowledging both that global warming is real and that humans can do something about it even in the extremely unlikely case that humans didn’t make a significant contribution to solving the problem. We’ve been doing a bang-up job already in producing a significant – though only temporary – reduction in the global warming problem by mindlessly throwing particulate pollution into the atmosphere. That particulate pollution (and only that part of our pollution) is responsible for what some call “global cooling”. Alas, it’s a no-win situation. It’s only valuable for a short-term delay in the catastrophe we face.
[QUOTE=engineer_comp_geek]
There are a few interesting things to think about.
- The rise in temperature corresponds very well with the rise in the amount of pollutants that we shove up into the air. This alone is very suspicious.
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I don’t understand you. There is something of an inverse correlation as described just above; is that what you meant? In any case, I don’t understand the nature or cause of your suspicion.
[QUOTE=engineer_comp_geek]
3. The earth’s temperature is abnormally low compared to what it was through most of the earth’s history. We might just be experiencing some sort of recovery.
- If we are experiencing some sort of “recovery”, it’s quite possible that the change in temperature back to a more “normal” earth could be rather catastrophic to the existing life on earth, which has grown accustomed to the cold.
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I’m not quite sure what you’re getting at with the idea of a “recovery”, but in any case, as you suggest, unless we act and act now, we’re doomed in a very short amount of time – recovery or not.