In a previous post, we listed severe weather events from the decades of 1950, 60 and 70. Clearly, recent years (as focused on by Gore et al) are not the only ones to experience horrendous weather as a result of "climate change."
Al Gore also contends that recent warming (supposedly due to human CO2 emissions) is a sure symptom of "climate change," and, btw, the world can expect anywhere from a 5 to 10 C degree global temperature increase by 2100, based on the current trend. Really? Is that his own "reality"?
Well...the adjacent chart of projected temperature change by year 2100, based on the July 2011 10-year linear trend, reveals a century-ending temperature change that only amounts to a -0.7 C (yes, that's a minus).
Obviously, "reality" and Gore's brain are not a good scientific match.
What's even more interesting from this chart is the extreme variability that exists within the climate system, when viewing projected year 2100 temperature change at different points in time. For example, in 1942, the 10-year linear trend indicated that by year 2100 global temperatures would increase by some 6 degrees. And a few short years later, the 10-year linear trend in 1951 suggested a large decrease in global temperatures of 6.7 degrees by 2100.
The graph's green curve is a simple 20-year average of the rolling 10-year linear trends. Per the recent temperature data, the green curve reveals our current "climate change" is not extreme nor extraordinary.
So...what can we reasonably speculate/conclude from the above chart?
- Linear trends are not very good predictions
- Projected high temperature change by year 2100, per Gore and others, is not believable
- Global temperatures are not experiencing "accelerating" warming
- Global warming is not "unequivocal"
- Global warming is not in a "runaway" condition
- Global climate, as represented by temperatures, has always shown extreme variability
- 19th & 20th century extrmeme climate change was not driven by human CO2 emissions (climate change prior to huge modern CO2 emissions)
- More recent climate change variation may actually have been moderated by modern human CO2 emissions
- This stark, indisputable empirical evidence is completely inconsistent with AGW theory and associated climate models
- Any U.S. presidential nominee candidate who claims "global warming" from human CO2 emissions should be an important priority is a non-scientific imbecile
- Actually, more concern by all should be directed towards the potential of extreme global cooling, based on the most current 10-year trend