Continuing my series of posts (see Global Warming I, Global Warming II, Global Warming III, and Global Warming IV, Global Warming V, Global Warming VI) about Global Warming I have graphs of carbon dioxide in the atmosphere from the Scripps Institution of Oceanography. I think that these are significant for several reasons and in several contexts.
First, these data support my contention that no citizen should vote for any Republican for any office from school crossing guard and dog catcher and higher. That party must be delivered an unmistakable message from voters that it cannot invent its own reality, and it must stop damaging the world.
Second, these data show powerful evidence, through correlation, if nothing else, that human activity has led to a major and still unending increase in CO2 in the atmosphere. As the knowledge that tells us that water vapor and carbon dioxide and some other gases are major factors determining Earth’s climate and temperature goes back more than 100 years and is not in question even by global warming deniers, those deniers have the serious problem of demonstrating why the major increase in atmospheric CO2 has not caused the observed surface temperature increase of recent decades.
Third, these data show that, as many of those who deny the importance of global warming assert, the climate has always changed and will continue to do so. But those who deny the importance of global warming with this true claim, many politicians among them, neglect to mention that the change in CO2 concentrations that we are experiencing is unprecedented in the past million years, at least, and that it extends far beyond the range of any earlier fluctuations.
Fourth, those who assert that humanity should and can merely adapt to these changes, an adaptation that they claim will not be difficult, neglect to mention that the entire span of human civilized existence, about 10,000 years, has also been a span of stable CO2 and stable climate. Thus, we have no certain ideas as to what will happen to the climate in the future nor any way to predict whether civilization will be able to maintain itself. Although this will not make much difference to me, now that I am an old guy, I am an alarmist because I believe alarm is justified.
Fifth, I apologize to coming generations for the mess my generation and a few earlier ones are leaving for them. We have much to be proud of, but global warming is a horrid blot upon our reputations. Continue reading