Global Warming?

[dragonrider]

Fact is co2 levels spike in relation to temp increase, but not as presented in that propoganda film. CO2 levels increase AS A RESULT of temp increase, they don't cause the increase.

Temperature increases do release CO2 trapped in permafrost and can increase decomposition of organic matter into CO2. There is some concern that this feedback loop may exacerbate the human caused waming by dumping even more CO2 into the atmosphere as warming procedes. But what is the evidence that historical CO2 levels have spiked as a result of temperature increases? For someone who doubts that CO2 effects temperature, which is a fairly well modeled phenomenon, you seem pretty confident that warming affects CO2. You don't believe that the past century's increase in CO2 concentrations are the result of warming, do you? I think that it has been proven that the extra carbon in the atmosphere is fossil carbon, not carbon from the normal atmospheric carbon cycle.

Can any of the believers explain how we are warming our entire solar system?

What evidence is there that the whole solar system is warming? I heard someone else say that the other day. First I've heard of it. The sun does vary its output over time, but I have not heard that it has been measured actually doing so to the point of affecting global (or solar system) temperatures. And I have not heard that other planets have been measured to be experiencing warming. I'd be interested in hearing more about that. It seems amazing to me that we could actually prove that other planets are heating up, but according to some we can't prove that our own is heating up. Maybe we need to get some of those thermometers they are using in space.

It's a natural occuring event. How can multiple periods of warming and cooling be explained that pre-date the modern industrial age?:wtf:

Climate variability is a naturally occuring phenomenon --- everyone knows that. There have been multiple ice ages and warmer periods throughout geologic history. There are long term periodic cycles that have to do with changes in the orbit of the earth around the sun and the angle of the axis on which the earth spins. There are also cycles within the atmosphere and oceans that change the climate over time. The rise of a mountain range over millions of years alters climate for entire continents and even the whole planet. Catastrophic events like meteor impacts alter the climate.

But just because climate change occurs naturally does not mean that human activity is not also affecting the climate. Human activity has indisputably alterd the CO2 concentration of the atmosphere. Why is it difficult to believe that changing the atmosphere would have consequences?

Please someone explain how WE are warming all of the other planets in our solar system!

Certainly no one has ever claimed that we are warming all of the other planets in our solar system.