This Temperature Timeline Of Earth Shows Exactly How Nonsensical Climate-Change Deniers Really Are

• metta
  
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  Sep 13, 2016 2:14 AM GMT

  http://www.iflscience.com/environment/this-temperature-timeline-of-earth-shows-exactly-how-nonsensical-climatechange-deniers-really-are/
  This Temperature Timeline Of Earth Shows Exactly How Nonsensical Climate-Change Deniers Really Are
  
  

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  Sep 13, 2016 2:33 AM GMT

  What changes in Earth's orbit since 22,000 years ago? We suddenly moved closer to the sun? When was this discovered & announced? And based on what evidence?

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• metta
  
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  Sep 13, 2016 4:36 AM GMT

  This might be it:
  
  "The earth's orbit around the sun is not quite circular, which means that the earth is slightly closer to the sun at some times of the year than others. The closest approach of the earth to the sun is called perihelion, and it now occurs in January, making northern hemisphere winters slightly milder. This change in timing of perihelion is known as the precession of the equinoxes, and occurs on a period of 22,000 years. 11,000 years ago, perihelion occurred in July, making the seasons more severe than today. The "roundness", or eccentricity, of the earth's orbit varies on cycles of 100,000 and 400,000 years, and this affects how important the timing of perihelion is to the strength of the seasons. The combination of the 41,000 year tilt cycle and the 22,000 year precession cycles, plus the smaller eccentricity signal, affect the relative severity of summer and winter, and are thought to control the growth and retreat of ice sheets. Cool summers in the northern hemisphere, where most of the earth's land mass is located, appear to allow snow and ice to persist to the next winter, allowing the development of large ice sheets over hundreds to thousands of years. Conversely, warmer summers shrink ice sheets by melting more ice than the amount accumulating during the winter. "
  
  http://www.ncdc.noaa.gov/paleo/milankovitch.html
  

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  Sep 13, 2016 5:14 AM GMT

  It's not a "sudden" thing, but they're called "Milankovich Cycles." Calculations of Earth's orbit correlate pretty darned well with certain long-term patterns of sedimentation, which are indicators of climate. Ironically, the oil industry has used these for many, many years to discover new oil reservoirs. However, although right-wing senators get all uppity when they learn about this, this effect is already accounted for in all climate models.
  
  The graph, of course, proves nothing. It's a nice comparison of temperatures to human history, and a pretty good illustration of what a few degrees difference in global temperatures really means. But it's misleading in the history of the planet. The first thing is that if you extend the graph back a million years or more, all this is just minor noise. (Then again, so is humanity.) The second thing is the infamous "hockey stick" effect, which is that the startling temperature rise at the end is all measured values, while all the rest is indirect extrapolation from fossilized evidence that could well be smoothed out, compared to reality.
  
  The other thing is that the authors are a little too flippant in dismissing the Midieval Warm Period and the "little ice age." Most of our regional climates are controlled by ocean and atmospheric circulation patterns that are a bit chaotic. Little wiggles in the jet stream, for instance, make the difference between drought and "normal" in my area. As far as we know, these patterns could flip in a year and make whole regions uninhabitable.

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  Sep 13, 2016 11:32 AM GMT

  metta saidThis might be it:
  
  "The earth's orbit around the sun is not quite circular, which means that the earth is slightly closer to the sun at some times of the year than others. The closest approach of the earth to the sun is called perihelion, and it now occurs in January, making northern hemisphere winters slightly milder. This change in timing of perihelion is known as the precession of the equinoxes, and occurs on a period of 22,000 years. 11,000 years ago, perihelion occurred in July, making the seasons more severe than today. The "roundness", or eccentricity, of the earth's orbit varies on cycles of 100,000 and 400,000 years, and this affects how important the timing of perihelion is to the strength of the seasons. The combination of the 41,000 year tilt cycle and the 22,000 year precession cycles, plus the smaller eccentricity signal, affect the relative severity of summer and winter, and are thought to control the growth and retreat of ice sheets. Cool summers in the northern hemisphere, where most of the earth's land mass is located, appear to allow snow and ice to persist to the next winter, allowing the development of large ice sheets over hundreds to thousands of years. Conversely, warmer summers shrink ice sheets by melting more ice than the amount accumulating during the winter. "
  
  http://www.ncdc.noaa.gov/paleo/milankovitch.html

  
  I'm aware of these terms and concepts. However, aren't they really changes to the Earth itself, and less to its orbit? Would it not be more accurate to say the "timing" of Earth's perihelion within its orbit, relative to its tilt, is what changes? And the perihelion does have a 22,000-year cycle. Now the differences in eccentricity at 100,000 and 400,000-year intervals would definitely be correctly defined as an orbital change.
  
  But the chart seems to be confusing and oversimplifying the various forces involved, when they imply that orbital changes occur at 22,000-year intervals. At the same time, I also realize that these are comic strip-like illustrations and captions, trying to condense complex ideas. And possibly for a school-age audience.

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  Sep 13, 2016 1:17 PM GMT

  Liberals: demonstrate proof that more taxation fixes the problem.

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  Sep 13, 2016 2:19 PM GMT

  It just shows that the weather is the weather. Change is the vector of the universe. Mars lost it's atmosphere and water ;was that caused by humans too? This graph shows huge variation before humans were around.
  
  The Bottom line is the total hypocracy of the folks that want to " do something" about climate change. They aren't gonna return to the cave or put down down half the population of the earth but they want to force others to do what they command . It's just an egotistical power trip.
  
  Have you ever seen a picture of Al gore's 22,000 SF house ? Mine is 1,200 SF .

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• bro4bro
  
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  Sep 13, 2016 7:21 PM GMT

  Yes, it's silly to deny that the earth's climate is changing.
  
  But if you think you're gonna "fix" it by driving a hybrid SUV and using fluorescent light bulbs - man, that's true denial.
  
  You wanna save the earth? Go kill about 3 billion people. And tell all the str8 people to stop fucking.

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• NealJohn
  
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  Sep 14, 2016 8:13 PM GMT

  I think it sad people believe that sciene can tell us what the temperature of the earth was 10,000 years ago.

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• metta
  
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  Sep 14, 2016 8:33 PM GMT

  NealJohn said I think it sad people believe that sciene can tell us what the temperature of the earth was 10,000 years ago.

  
  
  
  Are you not aware that the Earth keeps historical records in the earth and ice samples? How do you think they are able to determine the age of a fossil?
  
  
  How do we determine past climate?
  https://www.niwa.co.nz/climate/faq/how-do-we-determine-past-climate

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• metta
  
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  Sep 15, 2016 4:20 PM GMT

  What the ‘sixth extinction’ will look like in the oceans: The largest species die off first
  
  
  “What to us was surprising was that we did not see a similar kind of pattern in any of the previous mass extinction events that we studied,” said geoscientist Jonathan Payne of Stanford University, the study’s lead author. “So that indicated that there really is no good ecological analogue…this pattern has not happened before in the half billion years of the animal fossil record.”
  
  [url]http://www.msn.com/en-us/weather/topstories/what-the-%e2%80%98sixth-extinction%e2%80%99-will-look-like-in-the-oceans-the-largest-species-die-off-first/ar-BBwa67k?li=BBnb7Kz&ocid=iehp[/url]

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  Sep 15, 2016 9:31 PM GMT

  NealJohn said I think it sad people believe that sciene can tell us what the temperature of the earth was 10,000 years ago.

  
  
  Stick to the gym,meathead.
  
  Unbelievably stupid.

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  Sep 15, 2016 9:33 PM GMT

  MaleElement saidIt just shows that the weather is the weather. Change is the vector of the universe. Mars lost it's atmosphere and water ;was that caused by humans too? This graph shows huge variation before humans were around.
  
  The Bottom line is the total hypocracy of the folks that want to " do something" about climate change. They aren't gonna return to the cave or put down down half the population of the earth but they want to force others to do what they command . It's just an egotistical power trip.
  
  Have you ever seen a picture of Al gore's 22,000 SF house ? Mine is 1,200 SF .

  
  
  The weather is the weather ...
  
  My god you and your ignorant kind are the reason the earth is doomed.
  
  M n de dum de dumb.

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