Another View on Climate

My Own View of Global Warming

Archive for the ‘History’ Category

7-15C in Just Decades

Posted by greg2213 on April 21, 2010

The Al Gore View of Global Warming basically states that the world is doomed, unless (snarky remarks deleted.) The ward does seem to have warmed by  maybe .6C or so over the last 120 some odd years. The Gore crowd claims this is unprecedented, rational people point out that the historical record says that it isn’t.

As I mentioned in the previous post, 1500 year cycles, there were a number of times during the last ice ages where temps rose 7-8C in a matter of decades. Before SUVs were invented or any fossil fuel was being burned.

I found this in a WUWT comment:

“The Greenland (Arctic) and Vostok (Antarctic) ice cores are particularly informative, offering fine temporal resolution and continuity. This has revealed surprising oscillations of climate on a millennial scale within the main 100-kyr cycle. The Greenland Ice Core Project (GRIP) identifies some 24 interstadials through the last ice age with average temperature rising rapidly by ~7 C over just decades. Further ice and sediment cores from around the world are demonstrating the global scale of these major climatic events.”

From: Hewitt, G. 2000. The genetic legacy of the Quarternary ice ages. NATURE, Vol. 405, 22 June 2000 (www.nature.com)

Here’s a  2004 paper from the same author (and it’s a Royal Society paper)

Our climate has been cooling for ca. 60Myr, with the Antarctic ice sheet forming ca. 35 Ma and the Arctic icecap growing from ca. 3 Ma. The Quaternary Period has been dominated by Ice Ages, which involve repeated global cooling and increasing advances of these ice sheets. These oscillations are paced by regular eccentricities in the Earth’s orbit around the sun every 100, 41 and 21 kyr. The large ice sheets, surrounding permafrost, lower global temperature and reduced water availability caused great changes in the distribution of species, which can be seen in the fossil record (Bennett 1997; Williams et al. 1998). Recent work with cores from ice sheets and sea beds confirms the effects of millennial-scale change in climate nested within the main 100 kyr cycle. These involved changes of as much as 7–15 °C over a few decades, which then lasted for hundreds of years, and there is fossil evidence that these, including the Younger Dryas ca. 11 ka, caused shifts in species distributions.

Full paper (PDF) here: Genetic consequences of climatic oscillations in the Quaternary

7-15C over a few decades, from perfectly nature causes, and we’re supposed to hand over the world’s economies to Al Gore & Co over Zero.6C?

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Adjustments

Posted by greg2213 on April 16, 2010

Here’s an interesting graph. It shows measured US temps Vs adjusted US temps, since 1880.

Also see the 1934 post on the same subject.

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Over 2.5 Billion Years Ago It Was Really Bad

Posted by greg2213 on January 15, 2010

There was no oxygen.

Oxygen makes up 21% of the Earth’s atmosphere, and we need it to breathe. But early organisms would have found this environment toxic. Ancient bacteria evolved protective enzymes that prevented oxygen from damaging their DNA, but what evolutionary incentive did they have to do this? Researchers have discovered that ultraviolet light hitting the surface of glacial ice can release molecular oxygen. Bacteria colonies living near this ice would have needed to evolve this protective defense. They were then well equipped to handle the growth of atmospheric oxygen produced by other bacteria that would normally be toxic.

Here’s the whole thing: How Did Early Bacteria Survive Poisonous Oxygen?

I’ve made jokes about the news reports in The Bacterial Times regarding the toxic Oxygen that was appearing in the atmosphere. No doubt the UBN (United Bacterial Nations) was discussing ways to reduce their oxygen footprint…

Early bacterium discovers that its clone is an O2 denier…

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Media Accounts of Global Warming/Cooling Over the Years

Posted by greg2213 on January 15, 2010

Everyone knows that for the past 30 some odd years the alarmist crowd has been alarming about Global Warming. Something that many people don’t know is that the crowd was alarming about Global Cooling in the 1970s. Some members of that crowd were the same people as the modern warming crowd.

There was also “some concern” about warming in the 30s and 40s.

Here’s a PDF of media coverage of warming/cooling over the last 120 years or so.

Fire and Ice

So next time someone tells you that the modern period is unique you can just smile knowingly.

1907 NY Times post about golf stream slowing down

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