Comments on: Ice and pollen http://www.sindark.com/2007/10/03/ice-and-pollen/ Temporarily Torontonian Fri, 10 Feb 2012 16:08:33 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: . http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-30111 . Fri, 07 Dec 2007 20:03:19 +0000 http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-30111 <a href="http://www.realclimate.org/index.php/archives/2007/12/past-reconstructions/" rel="nofollow">Past reconstructions: problems, pitfalls and progress</a> Filed under: * Paleoclimate * Climate Science Many people hold the mistaken belief that reconstructions of past climate are the sole evidence for current and future climate change. They are not. However, they are very interesting and useful for all sorts of reasons: for modellers to test out theories of climate change, for geographers, archaeologists and historians to examine the impact of climate on past civilizations and ecosystems, and for everyone to get a sense of what climate is capable of doing, how fast it does it and why. Past reconstructions: problems, pitfalls and progress

Filed under:
* Paleoclimate
* Climate Science

Many people hold the mistaken belief that reconstructions of past climate are the sole evidence for current and future climate change. They are not. However, they are very interesting and useful for all sorts of reasons: for modellers to test out theories of climate change, for geographers, archaeologists and historians to examine the impact of climate on past civilizations and ecosystems, and for everyone to get a sense of what climate is capable of doing, how fast it does it and why.

]]> By: . http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-26340 . Wed, 24 Oct 2007 14:57:42 +0000 http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-26340 The Younger Dryas is so called because it corresponds, in the pollen record from Europe, to the latest (i.e. youngest) appearance of the Dryas octopetala pollen, an alpine flower in regions that are now far from alpine. It marks a clear period towards the end of the last ice age when the warming trend of the deglaciation in Europe particularly was interrupted for a period of about 1300 years before it got going again. There were clear glacier advances during this time and the moraines can be seen very clearly all around Europe and Scandinavia. The Younger Dryas is so called because it corresponds, in the pollen record from Europe, to the latest (i.e. youngest) appearance of the Dryas octopetala pollen, an alpine flower in regions that are now far from alpine. It marks a clear period towards the end of the last ice age when the warming trend of the deglaciation in Europe particularly was interrupted for a period of about 1300 years before it got going again. There were clear glacier advances during this time and the moraines can be seen very clearly all around Europe and Scandinavia.

]]> By: a sibilant intake of breath » Blog Archive » Geologic time http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-25370 a sibilant intake of breath » Blog Archive » Geologic time Wed, 10 Oct 2007 11:04:36 +0000 http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-25370 [...] years: about a third of the way into the Pleistocene, but just a tiny foray into geologic time. Pollen from Lake Tanganyika might take us through the Pliocene (Greek for ‘more new’) and into the Miocene [...] [...] years: about a third of the way into the Pleistocene, but just a tiny foray into geologic time. Pollen from Lake Tanganyika might take us through the Pliocene (Greek for ‘more new’) and into the Miocene [...]

]]> By: Milan http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-24843 Milan Wed, 03 Oct 2007 17:16:02 +0000 http://www.sindark.com/2007/10/03/ice-and-pollen/#comment-24843 See also: <a href="http://en.wikipedia.org/wiki/Paleoclimatology" rel="nofollow">Paleoclimatology</a> <a href="http://en.wikipedia.org/wiki/Palynology" rel="nofollow">Palynology</a> is the science that studies contemporary and fossil palynomorphs, including pollen, spores, dinoflagellate cysts, acritarchs, chitinozoans and scolecodonts, together with particulate organic matter (POM) and kerogen found in sedimentary rocks and sediments. Palynology does not include diatoms, foraminiferans or other organisms with silicaceous or calcareous exoskeletons. Here is <a href="http://en.wikipedia.org/wiki/Image:Misc_pollen.jpg" rel="nofollow">some pollen magnified 500x</a>. See also: Paleoclimatology

Palynology is the science that studies contemporary and fossil palynomorphs, including pollen, spores, dinoflagellate cysts, acritarchs, chitinozoans and scolecodonts, together with particulate organic matter (POM) and kerogen found in sedimentary rocks and sediments. Palynology does not include diatoms, foraminiferans or other organisms with silicaceous or calcareous exoskeletons.

Here is some pollen magnified 500x.

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