Environmental activism of Al Gore Gore became interested in global warming when he took a course at Harvard University with Professor Roger Revelleone of the first scientists to measure carbon dioxide in the atmosphere.
To quote, he says the following when discussing the ice-core data about 40 mins after the beginning for the film: When there is more carbon dioxide, the temperature gets warmer, because it traps more heat from the sun inside.
Of course, this could indeed be the case, and to some extent, it necessarily is. However, can this conclusion really be drawn from this graph?
Can one actually say anything at all about how much CO2 affects the global temperature? All it says is that there An inconvenient truth analysis some equilibrium between dissolved CO2 and atmospheric CO2, an equilibrium which depends on the temperature. Al Gore uses pyrotechnics to lead his audience to the wrong conclusion.
This is of course wrong. All it says is that we offsetted the dissolution balance of CO2 in the oceans. If we were to stop burning fossil fuels which is a good thing in general, but totally irrelevant herethen the large CO2 increase would turn into a CO2 decrease, returning back to the pre-industrial level over a century or so.
Think for example on a closed coke bottle. It has coke with dissolved CO2 and it has air with gaseous CO2. Just like Earth, most of the CO2 is in the dissolved form.
If you warm the coke bottle, the coke cannot hold as much CO2, so it releases a little amount and increases the partial pressure of the gaseous CO2, enough to force the rest of the dissolved CO2 to stay dissolved.
Since there is much more dissolved CO2 than gaseous CO2, the amount released from the coke is relatively small. Of course, the comparison can go only so far. The mechanisms governing CO2 in the oceans are much more complicated such that the equilibrium depends on the amount of biological activity, on the complicated chemical reactions in the oceans, and many more interactions I am probably not aware of.
For example, a lower temperature can increase the amount of dust reaching the oceans.
The bottom line is that the equilibrium is quite complicated to calculate. The change in the amount of atmospheric CO2 is about 80 ppm. The main evidence proving that CO2 does not control the climate, but at most can play a second fiddle by just amplifying the variations already present, is that of lags.
In all cases where there is a good enough resolution, one finds that the CO2 lags behind the temperature by typically several hundred to a thousand years. Namely, the basic climate driver which controls the temperature cannot be that of CO2.
That driver, whatever it is, affects the climate equilibrium, and the temperature changes accordingly. Once the oceans adjust on time scale of decades to centuriesthe CO2 equilibrium changes as well. Note that I write "almost anything", because it turns out that the CO2 temperature correlation can be used to say at least one thing about the temperature sensitivity to CO2 variations, as can be seen in the box below.
It is interesting to note that the IPCC scientific report e. Instead of pointing it out, they write that in some cases e. This is of course chaff to cover the fact that when CO2 and temperature are measured with the same cores, or when carefully comparing different cores, a lag of typically several hundred years is found to be present, if the quality and resolution permit.
Such an example is found in the figure below. There are many examples of studies finding lags, a few examples include: Science, volp.
Science vol, find that the start of the CO2 increase in the beginning of the last interglacial lagged the start of the temperature increase by years. Clearly, the correlation and lags unequivocally demonstrate that the temperature drives changes in the atmospheric CO2 content.
I am sure there is some effect in that direction, but to empirically demonstrate it, one needs a correlation between the temperature and CO2 variations, which do not originate from temperature variations. The only temperature independent CO2 variations I know of are those of anthropogenic sources, i.
Since the increase of CO2 over the 20th is monotonic, and other climate drivers e. This "random walk" in the amount of CO2 is the reason why there were periods with 3 or even 10 times as much CO2 than present, over the past billion years.An Inconvenient Truth Summary SuperSummary, a modern alternative to SparkNotes and CliffsNotes, offers high-quality study guides that feature detailed chapter summaries and analysis of major themes, characters, quotes, and essay topics.
Jan 17, · FOR those of us who argue in favor of gun safety laws, there are a few inconvenient facts. We liberals are sometimes glib about equating guns and danger. Al Gore has provided a target-rich environment of deceptions in his new movie.
After viewing Gore’s most recent movie, An Inconvenient Sequel: Truth to Power, and after reading the book version of the movie, I was more than a little mtb15.com new movie and book are chock-full of bad science, bad policy, and factual errors.
Stop the Playbook! There are many things we can do to keep the Disinformation Playbook from sidelining science and disabling democracy. It’s a team effort: scientists, science supporters, public officials, journalists, and .
The film chosen for the analysis is “An Inconvenient Truth”. This is a documentary film made in , directed by Davis Guggenheim and presented by Al Gore, the former Vice-President of USA and a US presidential Candidate. Essay on Al Gore's an Inconvenient Truth: Rhetorical Analysis Words | 5 Pages Al Gore’s An Inconvenient Truth: Rhetorical Analysis In Al Gore’s An Inconvenient Truth, he focuses on the harm global warming does to our planet.