You've said a lot about global warming for several posts but have yet to produce any supporting evidence. I am open to hearing about man caused global warming but have not seen ANY legit studies to date. There were problems with your other posts too that I skipped but will go back now because of this post.
-Man caused global warming is due to all the CO2 we are producing. I already posted about that. Like higher population of the world+deforestation+burning fossil fuels = stronger green house effect. Which means global warming. You cant honestly tell me that you think none of these things have negative effects?
The Earth experiences incredibly different fluctuations in atmospheric makeup, rainfall, and literal Earth changing events such as super volcano eruptions and meteorite impacts, that makes average temperature over very long time spans completely useless for a man caused global warming debate. The Earth today is not going to have the same average temperature as it did 800,000, 400,000, or 200,000 years ago. I suppose that's good data to have (I'm all for expanding knowledge) but it's completely irrelevant to this.
- the average temps of the world still stays relatively the same through these ups and downs. What im saying is that yes we could be going into an "up" period, which was someones argument earlier in the thread so yes its relevant, but the rate at which the temps are rising are faster than any "up" period in history. This is another example of global warming.
What may (big maybe on may) be useful would be temperature data since man started becoming industrialized and may actually be able to do some damage. I am not familiar with the methodology used for proxy climate data (using layers of the earth) but it seems iffy and easily fudged from the brief research I did. However, giving it the benefit of the doubt, proxy climate data still suggests that there has been zero man caused global warming.
-If you dont trust scientists methods for collecting the temps for the layers of the earth then idk what to tell you? I generally trust people that are experts.
Scientific Theory does not equal fact. Some scientists believe man caused global warming but many many do not. There are several different competing Scientific Theories for the origin of the universe (String Theory, Big Bang, etc) but they are not all correct.
-Yes thats true. Scientific theory doesnt equal fact BUT 97% of scientists agree that climate change is taking place. That is a scientific theory. Whether or not it is caused by humans i guess is really the debate. But if you really dont think were causing it then what do you honestly think is?