They interact in non-linear ways which we really can t predict. One thing changes, which changes something else, which changes something else. There s this cascade of processes. The bottom line is that the model s predictions have failed to conform to what has occurred. The main point of the video is the central importance of carbon dioxide for life on earth.
Carbon dioxide is a nutrient a very important nutrient, perhaps the most important.
However, the evidence that it s doing a good thing by lengthening the growing season and making plants grow better is somewhere between large and overwhelming. In an editorial about scientific literacy Vice President Al Gore decried what he perceives to be industry s exploitation of the public s scientific ignorance to oppose ratification of the Kyoto Protocol. This assault takes political advantage of the fact that too many Americans lack sufficient science literacy to tell the difference between sound science and sound bites. But scientific literacy is necessary if we are to engage in an informed and rational debate. Unfortunately, scientific illiteracy means that too many Americans will be easy marks for anti-scientific public relation ploys.