Scrat,
It is important to note that there are several different issues of pollution and emissions which have a percievable effect on our environment which are all being lumped up into one category in the term 'Climate Instability.'
I along with a lot of scientists have been using this term lately because the whole term 'Global Warming' doesn't reflect the true problems that we cause. I'm not worried about us raising the temperature on the planet. Hell, it's probably a natural thing that the temp goes up some and down some as the years go by. Given the fact that we have survived extremely hot periods and cold periods in our past I doubt that the Earth is going to become unlivable for heat reasons. Though it is a concern; heat pollution
does have a marked effect on weather patterns, and here's the key, in localized regions of heat production (such as large cities and industrial sites). While the overall temperature of the planet may remain constant, the local temperatures and weather patterns shift more readily according to man-made pollution and changes. The question as to whether this will spill over into a more substantial climate change is as of yet unresolved, although there is compelling evidence the the 'el nino' winds simply didn't exist before modernization.
I believe that climate instability also has a lot to do with the levels of oxygen and CO2 in the air. The Bush admin took steps to remove levels of CO2 from being considered pollutants, when in many ways elevated Carbon Dioxide levels are one of the greatest dangers to a stable environment that we can imagine. It is without a doubt that elevated levels of CO2 can effect weather patterns and heat patterns. And, surprisingly, it is
ocean pollution that causes a lot of our problems here. Most people don't realize that trees, the typical Greenie solution to saving the planet, only convert a relatively small amount of our air to Oxygen. The vast amount is doen by ocean-borne life.
From a pretty simple
site on the Oxygen-Carbon cycle:
Quote:The ocean absorbs more carbon dioxide when it is cold. The one celled organisms that live near the surface of the oceans (near coasts and around the south pole) can change the carbon dioxide into oxygen and food molecules (energy) by photosynthesis. These one celled organisms are called phytoplankton or just plankton. Algae, such as seaweed also undergo photosynthesis. THESE SMALL ORGANISMS PRODUCE THE MAJOR PORTION OF THE OXYGEN FOR BREATHING ON THIS PLANET BY PHOTOSYNTHESIS .
Changing the surface temperature of the ocean, especailly in coastal regions, can have a major effect on the localized production of oxygen, and the real problem is that pollution in the ocean can have a cascading effect where certain algaes and plankton die off and just don't come back, at least as far as we can tell.
It is unarguable the elevated CO2 levels lead to higher temperatures. I mean, this is a scientific fact. None of Chic's quotes from 'State of Fear' disputes the fact that we are experiencing warmer trends these days, they only dispute whether it is natural or whether we are having an effect upon it. The worry is that increased CO2 production and pollution of our Oceans (which has a magnifying effect upon the CO2 levels) will tip the system of weather over to a point of instability (or NEW stability, which while stable, can bring weather patterns to radically different areas of the globe).
I don't think this should be a partisan issue. We don't need rules and restrictions to know that dumping huge amounts of smog and smoke and waste into our environment IS going to have an effect; it is just a matter of time until we see what those effects are. I don't really feel comfortable gambling on this one; better to play it safe. And, it's nicer to actually be able to breathe the air, don't you think? If you disagree, take a trip to Mexico City sometime and see if you still feel that way.
Cycloptichorn