The instrument you are using to mark time is a stop watch and you need a calendar. The planet's climate moves with glacial speed. Sometimes slower.
The talk of climate change within the course of years is hogwash. Any cycle that can be observed within a lifetime is like a sunrise compared to a season. 50 thousand years, 100 thousand years, a million years. These are the little black lines on the time line of the climate.
The link below will show you a graph of the roughly 14 degree drop in global temperature for our climate over the last 65 million years to date.
Our current period is labeled as the period of rapid glaciation. From a historical point of view, we are pretty cold in relative terms. The question should not be why are we warming, but, rather, why are we so cold?
File:65 Myr Climate Change Rev.png - Global Warming Art
Odd, that is not at all what you site says or shows. At the end of the Eocene, there was a very big drop, very rapid. And there have been many periods of rapid change before and after that, as the graph showl.
Most recently, we have evidence of very rapid climate change going into and out of the Younger Dryas.
File:65 Myr Climate Change Rev.png - Global Warming Art
Also appearing on this graph are the Eocene Climatic Optimum, an extended period of very warm temperatures, and the Paleocene-Eocene Thermal Maximum (labeled PETM).
The PETM is very short lived high temperature excursion possibly associated with the destabilization of methane clathrates and the rapid buildup of greenhouse gases in the atmosphere. Due to the coarse sampling and averaging involved in this record, it is likely that the full magnitude of the PETM is underestimated by a factor of 2-4 times its apparent height
Now that is from your site. Clearly says we have evidence of a large and rapid change in planetary temperature due to the build up of GHGs.
Do you ever read before you post? Why in hell do you think that this site represents proof that only slow changes occur? It state right within the site that there have been rapid changes, some of them associated with the rapid build up of GHGs.
In all but a very few instances, 2 or 3 in the 4 billion year long history of the planet, the increase or decrease of GHG's is caused by temperature variation. To claim that the GHG's Cause temperature change historically is just not supported by facts or history.
By whose facts or history? The scientists, paleoclimatologists, that investigate this sort of thing, totally disagree with you, as do most of the physicists in the world.
The PETM happened about 50 million years ago and then the temperature rose to the peak of the PETM gradually following that if the graph is to be believed. The little space covered by the time elapse of the PETM on the graph represents about a half million years.
Checking the graph as it comes to the more recent times, the radical moves up and down are far quicker than the PETM or any other period for the last million or so years and the part you are exhorting us to panic over is the last 150 or so years.
My contention is that the planet has cooled by about 14 degrees in the last 65 million years. Are you saying that it has not?
Red herrings and strawmen are your specialty, Code.
Real science from real scientists
http://www.agu.org/journals/ABS/2007/2007GC001784.shtml
On the duration of the Paleocene-Eocene thermal maximum (PETM)
On the duration of the Paleocene-Eocene thermal maximum (PETM)
Ursula Röhl
Center for Marine Environmental Sciences (MARUM), Bremen University, Leobener Strasse, D-28359 Bremen, Germany
Thomas Westerhold
Center for Marine Environmental Sciences (MARUM), Bremen University, Leobener Strasse, D-28359 Bremen, Germany
Timothy J. Bralower
Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802, USA
James C. Zachos
Earth and Planetary Sciences Department, University of California, Santa Cruz, California 95064, USA
The Paleocene-Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of isotopically light carbon into the ocean-atmosphere system. One key to quantifying the mass of carbon released, identifying the source(s), and understanding the ultimate fate of this carbon is to develop high-resolution age models. Two independent strategies have been employed, cycle stratigraphy and analysis of extraterrestrial helium (HeET), both of which were first tested on Ocean Drilling Program (ODP) Site 690. These two methods are in agreement for the onset of the PETM and initial recovery, or the clay layer (“main body”
, but seem to differ in the final recovery phase of the event above the clay layer, where the carbonate contents rise and carbon isotope values return toward background values. Here we present a state-of-the-art age model for the PETM derived from a new orbital chronology developed with cycle stratigraphic records from sites drilled during ODP Leg 208 (Walvis Ridge, Southeastern Atlantic) integrated with published records from Site 690 (Weddell Sea, Southern Ocean, ODP Leg 113). During Leg 208, five Paleocene-Eocene (P-E) boundary sections (Sites 1262 to 1267) were recovered in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge, yielding the first stratigraphically complete P-E deep-sea sequence with moderate to relatively high sedimentation rates (1 to 3 cm/ka, where “a” is years). A detailed chronology was developed with nondestructive X-ray fluorescence (XRF) core scanning records on the scale of precession cycles,
with a total duration of the PETM now estimated to be ∼170 ka. The revised cycle stratigraphic record confirms original estimates for the duration of the onset and initial recovery but suggests a new duration for the final recovery that is intermediate to the previous estimates by cycle stratigraphy and HeET.
