ReinyDays
Gold Member
It is cherry picking to select a temperature based on its value rather than one based on time or some other independent parameter. The idea was to see how much human CO2 emissions since the Industrial Revolution had pushed up the Earth's average temperature. If you want to select a specific temperature from the past, you aren't 'discovering' what the increase was, you're specifying the answer in advance. We do not ignore deforestation and land use changes. Their impact has been thoroughly discussed in every single IPCC Assessment Report. I frequently add deforestation as one of the components of anthropogenic warming. And, as others here like to point out, our increasing emissions and our increasing deforestation are all a result of our increasing population. Perhaps that is what we ought to be talking about first. But, in any case, it is bad logic to argue that we have to address one and not the other. We can address all of them at the same time. We HAVE to address all of them at the same time. There's enough cleverness around to solve these issues. The trouble is that cleverness gets swamped down by the fear and ignorance of the folks that can't seem to address a problem any further off than next week and a mile down the road.
Cherry picking is only using data that matches one's preconceived notions ... for example, only using the past fifty years of data to demonstrate a correlation ... this is a form of lying if looking at 100 years of data shows a much less correlation ... as ding has shown, there's very little correlation over the past 1,000 years ...
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Cherries ripen at different times even on the same tree ... the farmer has to go through his entire orchard picking the ripe cherries, then go through his entire orchard again a week later, then a another week later ... only picking the ripe cherries ... see that, "cherry-picking" ... taking what fits and leaving behind what doesn't ...
I'm sorry ... there's physics involved in these processes, and physics requires rigid formal mathematical proofs ... or it's strictly speculation ...
I started to read Dr. Mann's textbook on climatology ... when his scientific reputation is put on the line, there's 20 to 24 different factors that effect temperature (including CO2), all of which interact in strange and confusing ways ... surprising what these folks will say if their job is on the line ...