We already know this, but it is nice to see it clearly confirmed in a
way that it cannot be challenged. More importantly, this work
tackles the period between 6000 BP through 9000 BP. This is
important because it is during this era that human agriculture rolled
out but also were most still lived an existence of hunting and
gathering. It is only 6000 BP that metal work emerged at all.
If we presume that the core event over the past 6000 years has been
goat driven desertification, then we have Holocene A which is
approximately one degree warmer than Holocene B which has proven far
more susceptible to volcanic cooling events.
The take home is that Anthropomorphic Global Cooling (AGC) is likely
real and it would be nice to correct it.
This can be done by the simple expedient of reforesting the Sahara in
particular and similarly for the whole Middle East. We have covered
this topic at length in this blog.
This would end the excessive loss of heat into space over these
regions and convert the captured heat into the climate itself.
Modern Temperatures
Significantly Below Previous Warmings New Treeline Study Determines
The IPCC’s climate
doomsday scientists claim the modern global temperatures are
“unprecedented” - the global warming science facts are
irrefutably that past climate was warmer than our modern temperatures
with a much lower atmospheric CO2 level
Read here. Another study, another nail in the “unprecedented” AGW coffin. New scientific research keeps refuting the claims of IPCC and chicken-little pundits. The empirical evidence is robustly overwhelming: global temperatures were warmer thousands of years ago despite low CO2 levels.
The two images above
reflect the evidence of the warmer climates some six to ten
thousand years ago. The image on the left reveals the history of
the northern treeline in Finland and the image on the right the same
for Siberia. The simple fact of a more northern treeline in both
cases requires earlier periods to be considerably warmer than the
current climate.
Now, a new study
reveals that the northern treeline in Rocky Mountains was at a much
higher altitude from six to nine thousand years ago, which confirms
the extra warm climate was not just limited to the Finland/Siberia
areas.
“…finds
that the elevation of the treeline in the
Rocky Mountains of Wyoming was higher than the present from
approximately 9000 to 6000 years ago, indicating the climate was
warmer during that period as compared to present temperatures. The
paper adds to thousands of others indicating that the current warming
period is not unprecedented; nor unusual compared to natural warming
in the past.” [Scott Mensing, Thomas Minckley, Robert
Musselman 2012: The
Holocene]
Conclusions: The
global warming science facts are often inconvenient - Earth was
warmer in the past versus modern temperatures. The empirical evidence
refutes claims that our current climate is on "unprecedented"
warmth. In addition, the empirical evidence well establishes that
warmer climates of the past occurred during periods of low
atmospheric CO2. Climate doomsday scientists can take solace that
they will be able to continue to predict climate catastrophe without
ever being held accountable.
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