Because we're only just recognizing that what is occurring isn't just a temporary thing; some things are predictable in pattern, like El Ninos and La Ninas, seasons, that sort of thing. But those are global also. Droughts, floods, extremes of heat and cold are also cyclical, but affect the global system.
Since man is a part of the ecosystem of the planet, it is easy to say that we're part of the problem. To a small extent we are. The rest IS the earth's life pattern.
The explanation is complicated by all the different schools of thought by noted scholars and now, Al Gore and his favorite professor. They only have part of the problem correct and this is true of the scientific scholars as well.
Man does have an impact on climate with air pollution; deforestation; creating
concrete cities; man-made lakes; drainage of wetlands; these all affect climate, and by doing that, also affects the climate patterns.
How can you tell what was climate in the past? Mineral deposits, fossils of flora and fauna, soil types; icepack samples from both poles; boulders and rock formations.
How are the deserts created? By the sun shining in the same spot longer than other areas on the planet? By poor farming methods, overfarming or natural disaster? Some these things have been caused by man.
NASA GISS: Science Briefs: The Physics of Climate Modeling
Sorry, let me amend that. Why are people saying that it is human induced?
Yes it is possible for humans to affect local ecosystems, but where is the evidence that we are causing global warming? When global warming is used as a term, I automatically assume they are referring to human induced global warming, and again I ask, where is the evidence.
Are you saying that the current 400 year warming period is human caused?
Fenton claims it is because of increased storm activity and a subsequent change in albedo. This is a chicken or egg argument and doesn't explain is why the storms increased in the first place.
Abdussamatov claims the agent is increased solar activity.
You decide.
A history of sunspot activity
Note the time frame and compare with the 400 year earth warming cycle
Well, we will need a working model.
The green type likes to point at Venus as a proof of the "runaway greenhouse effect" that the earth will experience if we don't stop putting CO2 in the atmosphere.
The problem is Venus has a lot more CO2 than we have, and it's much closer to the sun. In fact Venus has so much CO2 that it is unlikely humans can put enough in the atmosphere even if we burn all the oil, all the coal, and all the plant lives. Venus has an atmospheric pressure 90 times that of the earth. The gravity on Venus is only 0.9g. And the atmosphere is composed of 96.5% CO2. I don't know how to calculate this but I'm sure us puny humans, try as we might, can put this much CO2 in the atmosphere.
Everything they have presented so far are correlations and small scale models based on a closed system (greenhouse for plants).
We simply don't understand enough about the earth's climate system and track record to do any kind of prediction. Every prediction we have based on a computer model has been wrong. Input past weather pattern and out comes a result that did not match what has taken place.
Global warming is a hoax. It is an industry and a religion.
Earth warms up and earth cools down. There ain't much we can do about it.
"Only Nixon can go to China." -- Old Vulcan proverb.
Come to think of it, global warming has all the hallmarks of a religion.
A central issue of any religion is that humans are at the center of the attention. Even astrology believes that planets affect a person's life. That's very egocentric.
Think the Catholic church during the middle ages. The doctrine tells us that the europe is at the center of a flat world. This world is at the center of the universe. Everything revolves around us. God takes a personal interest in everyone's life. He will be very unhappy if someone does something that's against his wishes. Very egocentric.
Fastforward to today and the church of global warming.
These people believe humans are all-powerful and can easily influence the earth. Our activities affect this world. We are that powerful. We must do something to keep this world at a certain condition or else this world would die. The world revolves around us.
Egocentric indeed.
And of course both religions denounce non-believers and use correlations as "proof" of their doctrine. When we present facts and ask for a debate, they put their fingers into their ears and say "LALALALALALALALALA!!!" It seems like they cannot live with the fact that humans just aren't that cool. Humans are riding on the coat tail of the planet. The earth doesn't care what we do. The earth just is. It does what it wants regardless of our wishes.
Last edited by gunnut; 18 Jun 07, at 10:07.
"Only Nixon can go to China." -- Old Vulcan proverb.
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