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BIGGEST SCIENCE SCANDAL EVER: 'GLOBAL WARMING'


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#311 Rich C

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Posted 29 August 2019 - 10:07 PM

"nothing more than a change in weather patterns"

 

Just like now.

 

65-Million-Years-of-Climate-Change.jpg

A graph with some obscure labels and no explanation of what it is supposed to represent is meaningless.  Please explain and provide a link to the article from which this came.


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#312 MaryAM

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Posted 30 August 2019 - 03:03 AM

We didn't have any data in North America during the 1500's through even the middle 1800's - the indians didn't have thermometers.  



#313 Rich C

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Posted 30 August 2019 - 10:06 PM

We didn't have any data in North America during the 1500's through even the middle 1800's - the indians didn't have thermometers.  

 

This is a nonsensical comment regarding climate research over time.  There were also no thermometers prior to 1500's.  Climate data has been constructed from tree ring analysis and from core borings in Antarctica, much farther back than 1500's.

 

Beginning in the 1970s, paleoclimatologists began constructing a blueprint of how Earth's temperature changed over the centuries before the widespread use of thermometers. Over the last two decades, there has been a major breakthrough in our understanding of global temperature change over the last 2,000 years. Several different but important studies, published in peer-reviewed scientific journals, revolutionized what we know about the present day in the context of past centuries. The research of the late 1990s formed the foundation for a progression of studies that followed, incorporating advances in statistical techniques and information from a broad range of proxy data types.

Although there are differences between individual proxy temperature records, due in part to the diverse statistical methods utilized and sources of the proxy data, they all indicate similar patterns of temperature variability over the last 2,000 years. For example, it has become apparent that the "Medieval Climate Anomaly” temperatures from about 950 to 1250 AD were mostly warmer averaged over the Northern Hemisphere than during the subsequent "Little Ice Age” from roughly 1450 to 1850 AD. The timing and spatial structure of the Medieval Climate Anomaly and Little Ice Age are regionally complex, however. One region where these temperature variations played an important role in human history is the North Atlantic, where warmer temperatures during the Medieval Climate Anomaly allowed Norse seafaring and colonization of Greenland that began at the end of the 10th century and continued until cooler Little Ice Age conditions developed in the 15th century.

The similarity of characteristics among the different paleoclimate reconstructions of the last 2,000 years provides confidence in the following important conclusions, as reported in the Intergovernmental Panel on Climate Change Fifth Assessment Report:

  • Dramatic warming has occurred since the 19th century.
  • For average annual Northern Hemisphere temperatures, the period 1983–2012 was very likely the warmest 30-year period of the last 800 years and likely the warmest 30-year period of the last 1,400 years.
  • Warmer than average temperatures are more widespread over the Northern Hemisphere since the mid 20th century than in any previous time.

https://www.ncdc.noa...last-2000-years

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My swing trades typically last a couple of weeks to a couple of months and I focus on SPY.